types:
- show 184 types...
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accelerometer
an instrument for measuring the acceleration of aircraft or rockets
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actinometer
an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect)
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algometer
device for measuring pain caused by pressure
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altazimuth
an instrument that measures the altitude and azimuth of celestial bodies; used in navigation
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altimeter
an instrument that measures the height above ground; used in navigation
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atmometer, evaporometer
an instrument that measures rate of evaporation of water
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audiometer, sonometer
an instrument used to measure the sensitivity of hearing
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barometer
an instrument that measures atmospheric pressure
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bathometer, bathymeter
an instrument that measures the depth of water
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bolometer
an instrument that measures heat radiation; extremely sensitive
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buret, burette
measuring instrument consisting of a graduated glass tube with a tap at the bottom; used for titration
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caliper, calliper
an instrument for measuring the distance between two points (often used in the plural)
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calorimeter
a measuring instrument that determines quantities of heat
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chronoscope
an instrument for accurate measurements of small intervals of time
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colorimeter, tintometer
a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents
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counter tube
a measuring instrument for counting individual ionizing events
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craniometer
an instrument for measuring skull sizes
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cryoscope
a measuring instrument for measuring freezing and melting points
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declinometer, transit declinometer
an instrument for measuring magnetic declination
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densimeter, densitometer
a measuring instrument for determining density or specific gravity
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densitometer
a measuring instrument for determining optical or photographic density
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dosemeter, dosimeter
a measuring instrument for measuring doses of ionizing radiation (X-rays or radioactivity)
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dynamometer, ergometer
measuring instrument designed to measure power
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electrodynamometer
measuring instrument that uses the interaction of the magnetic fields of two coils to measure current or voltage or power
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electroscope
measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign
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eudiometer
measuring instrument consisting of a graduated glass tube for measuring volume changes in chemical reactions between gases
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gage, gauge
a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc.
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graduate
a measuring instrument for measuring fluid volume; a glass container (cup or cylinder or flask) whose sides are marked with or divided into amounts
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gravimeter, gravity meter
a measuring instrument for measuring variations in the gravitational field of the earth
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heliometer
an instrument used to measure the angular separation of two stars that are too far apart to be included in the field of view of an ordinary telescope
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haematocrit, hematocrit
a measuring instrument to determine (usually by centrifugation) the relative amounts of corpuscles and plasma in the blood
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gravimeter, hydrometer
a measuring instrument for determining the specific gravity of a liquid or solid
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hygrometer
measuring instrument for measuring the relative humidity of the atmosphere
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dip circle, inclinometer
a measuring instrument for measuring the angle of magnetic dip (as from an airplane)
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integrator, planimeter
a measuring instrument for measuring the area of an irregular plane figure
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interferometer
any measuring instrument that uses interference patterns to make accurate measurements of waves
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ionization chamber, ionization tube
a measuring instrument that measures the amount of ionizing radiation
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katharometer
measures thermal conductivity
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Kundt's tube
a measuring instrument used to measure the speed of sound
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lidar
a measuring system that detects and locates objects on the same principle as radar but uses light from a laser; a potential technology for detecting air turbulence that can affect aircraft
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log
measuring instrument that consists of a float that trails from a ship by a knotted line in order to measure the ship's speed through the water
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measure, measuring rod, measuring stick
measuring instrument having a sequence of marks at regular intervals; used as a reference in making measurements
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meter
any of various measuring instruments for measuring a quantity
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nephoscope
a measuring instrument that uses a grid for measuring the altitude, direction, and velocity of movement of clouds
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octant
a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration
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oximeter
a measuring instrument that measures the oxygen in arterial blood
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pedometer
measuring instrument for recording the number of steps taken in walking
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pelvimeter
measuring instrument for performing pelvimetry
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photometer
measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
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piezometer
a measuring instrument for measuring high pressures
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pipet, pipette
measuring instrument consisting of a graduated glass tube used to measure or transfer precise volumes of a liquid by drawing the liquid up into the tube
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Pitot head, Pitot tube, Pitot-static tube
measuring instrument consisting of a combined Pitot tube and static tube that measures total and static pressure; used in aircraft to measure airspeed
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Pitot, Pitot tube
measuring instrument consisting of a right-angled tube with an open end that is directed in opposition to the flow of a fluid and used to measure the velocity of fluid flow
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plethysmograph
a measuring instrument for measuring changes in volume of a part or organ or whole body (usually resulting from fluctuations in the amount of blood it contains)
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potentiometer
a measuring instrument for measuring direct current electromotive forces
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quadrant
a measuring instrument for measuring altitude of heavenly bodies
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microwave radar, radar, radio detection and ranging, radiolocation
measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects
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range finder, rangefinder
a measuring instrument (acoustic or optical or electronic) for finding the distance of an object
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refractometer
measuring instrument for measuring the refractive index of a substance
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rheometer
an instrument for measuring the flow of liquids (especially arterial blood)
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scale, weighing machine
a measuring instrument for weighing; shows amount of mass
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sclerometer
a measuring instrument that measures the hardness of materials by penetrating them with a stylus that has a diamond point
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sector
measuring instrument consisting of two graduated arms hinged at one end
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seismograph, seismometer
a measuring instrument for detecting and measuring the intensity and direction and duration of movements of the ground (as an earthquake)
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sensitometer
a measuring instrument for measuring the light sensitivity of film over a range of exposures
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sextant
a measuring instrument for measuring the angular distance between celestial objects; resembles an octant
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asdic, echo sounder, sonar
a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return
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spherometer
a measuring instrument for measuring the curvature of a surface
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spirograph
a measuring instrument for recording the depth and rapidity of breathing movements
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spirometer
a measuring instrument for measuring the vital capacity of the lungs
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static tube
a measuring instrument used to measure static pressure in a stream of fluid
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synchroniser, synchronizer, synchronoscope, synchroscope
an instrument that indicates whether two periodic motions are synchronous (especially an instrument that enables a pilot to synchronize the propellers of a plane that has two or more engines)
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tach, tachometer
measuring instrument for indicating speed of rotation
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tape, tape measure, tapeline
measuring instrument consisting of a narrow strip (cloth or metal) marked in inches or centimeters and used for measuring lengths
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tensiometer
a measuring instrument for measuring the surface tension of a liquid
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tensiometer
a measuring instrument for measuring the tension in a wire or fiber or beam
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tensiometer
a measuring instrument for measuring the moisture content of soil
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thermometer
measuring instrument for measuring temperature
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horologe, timekeeper, timepiece
a measuring instrument or device for keeping time
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tonometer
measuring instrument for measuring tension or pressure (especially for measuring intraocular pressure in testing for glaucoma)
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torsion balance
measuring instrument designed to measure small forces by the torsion they exert on a thin wire
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variometer
a measuring instrument for measuring variations in a magnetic field
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Venturi tube
a short tube inserted into a pipeline and used to measure the quantity of a liquid that is flowing in the pipeline
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viscometer, viscosimeter
a measuring instrument for measuring viscosity
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wattmeter
an instrument for measuring in watts the flow of power in an electrical circuit
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alcohol thermometer, alcohol-in-glass thermometer
thermometer consisting of a glass capillary tube marked with degrees Celsius or Fahrenheit and containing alcohol which rises or falls as it expands or contracts with changes in temperature
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ammeter
a meter that measures the flow of electrical current in amperes
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anemometer, wind gage, wind gauge
a gauge for recording the speed and direction of wind
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aneroid, aneroid barometer
a barometer that measures pressure without using fluids
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astrolabe
an early form of sextant
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atomic clock
a timepiece that derives its time scale from the vibration of atoms or molecules
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balance
a scale for weighing; depends on pull of gravity
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barograph
a recording barometer; automatically records on paper the variations in atmospheric pressure
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board rule
a measure used in computing board feet
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body plethysmograph
plethysmograph consisting of a chamber surrounding the entire body; used in studies of respiration
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bomb, bomb calorimeter
strong sealed vessel for measuring heat of combustion
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boron chamber
an ionization chamber lined with boron or filled with boron trifluoride gas for counting low velocity neutrons
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candy thermometer
a thermometer used to determine the temperature of candy syrups during cooking
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Centigrade thermometer
a thermometer calibrated in degrees centigrade
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clock
a timepiece that shows the time of day
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cryometer
a thermometer designed to measure low temperatures
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crystal counter
a counter tube in which an ionizing event increases conductivity
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dasymeter
densimeter consisting of a thin glass globe that is weighed in a gas to determine its density
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depth gage, depth gauge
a gauge for measuring the depth of grooves or holes or other concavities
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digital plethysmograph
plethysmograph applied to a digit of the hand or foot to measure skin blood flow
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dipstick
a graduated rod dipped into a container to indicate the fluid level
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Doppler radar
radar that uses the Doppler shift to measure velocity
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dropper, eye dropper
pipet consisting of a small tube with a vacuum bulb at one end for drawing liquid in and releasing it a drop at a time
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dry-bulb thermometer
an ordinary thermometer with a dry bulb; used to measure the air temperature
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early warning radar
a radar that is part of an early warning system
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electric meter, power meter
a meter for measuring the amount of electric power used
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electrometer
meter to measure electrostatic voltage differences; draws no current from the source
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Fahrenheit thermometer
a thermometer calibrated in degrees Fahrenheit
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fluxmeter
meter that measures magnetic flux by the current it generates in a coil
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galvanometer
meter for detecting or comparing or measuring small electric currents
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gas meter, gasometer
a meter for measuring the amount of gas flowing through a particular pipe
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gas gage, gas gauge, gasoline gage, gasoline gauge, petrol gage, petrol gauge
gauge that indicates the amount of gasoline left in the gasoline tank of a vehicle
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air thermometer, gas thermometer
thermometer that measures temperature by changes in the pressure of a gas kept at constant volume
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Geiger counter, Geiger-Muller counter
counter tube that detects ionizing radiations
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Geiger tube, Geiger-Muller tube
an ionization chamber contained in a tube in a Geiger counter
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graduated cylinder
a cylindrical graduate
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harpoon log
a cylindrical log with a device that registers distance
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hygrodeik
a wet and dry bulb hygrometer
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hygroscope
hygrometer that shows variations in the relative humidity of the atmosphere
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hypsometer
an altimeter that uses the boiling point of water to determine land elevation
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inside caliper
caliper for measuring inside dimensions (the size of a cavity or hole); points on its legs curve outward
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gaussmeter, magnetometer
a meter to compare strengths of magnetic fields
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maximum and minimum thermometer
thermometer that records the highest and lowest temperatures reached during a period of time
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meat thermometer
a thermometer that is inserted into the center of a roast (with the top away from the heat source); used to measure how well done the meat is
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mercury barometer
barometer that shows pressure by the height of a column of mercury
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mercury thermometer, mercury-in-glass thermometer
thermometer consisting of mercury contained in a bulb at the bottom of a graduated sealed glass capillary tube marked in degrees Celsius or Fahrenheit; mercury expands with a rise in temperature causing a thin thread of mercury to rise in the tube
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micrometer, micrometer caliper, micrometer gauge
caliper for measuring small distances
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microphotometer
special kind of densitometer that measures density variations over a very small area
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odd-leg caliper
caliper having the points on its legs both curve in the same direction
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hodometer, mileometer, milometer, odometer
a meter that shows mileage traversed
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ohmmeter
a meter for measuring electrical resistance in ohms
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outside caliper
caliper for measuring outside dimensions; points on its legs curve inward
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oven thermometer
a thermometer that registers the temperature inside an oven
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patent log, screw log, taffrail log
a cigar-shaped log with rotary fins that measure the ship's speed
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postage meter
meter for bulk mailings that imprints correct prepaid postage on pieces of mail and records the total charge
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pressure gage, pressure gauge
gauge for measuring and indicating fluid pressure
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proportional counter, proportional counter tube
counter tube whose output pulse is proportional to number of ions produced
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psychrometer
a hygrometer consisting of a dry-bulb thermometer and a wet-bulb thermometer; their difference indicates the dryness of the surrounding air
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pyrometer
a thermometer designed to measure high temperatures
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radiometer
meter to detect and measure radiant energy (electromagnetic or acoustic)
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pluviometer, rain gage, rain gauge, udometer
gauge consisting of an instrument to measure the quantity of precipitation
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Reaumur thermometer
an alcohol thermometer calibrated in degrees Reaumur
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reflectometer
a meter that measures the reflectance of a surface
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platinum thermometer, resistance thermometer
thermometer that measures temperature by changes in the resistance of a spiral of platinum wire
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reversing thermometer
a thermometer that registers the temperature in deep waters
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rule, ruler
measuring stick consisting of a strip of wood or metal or plastic with a straight edge that is used for drawing straight lines and measuring lengths
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salinometer
a hydrometer that determines the concentration of salt solutions by measuring their density
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sandglass
timepiece in which the passage of time is indicated by the flow of sand from one transparent container to another through a narrow passage
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scintillation counter
counter tube in which light flashes when exposed to ionizing radiation
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self-registering thermometer
a thermometer that records the temperature automatically
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size stick
a mechanical measuring stick used by shoe fitters to measure the length and width of your foot
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spectrophotometer
a photometer for comparing two light radiations wavelength by wavelength
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speed indicator, speedometer
a meter fixed to a vehicle that measures and displays its speed
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strain gage, strain gauge
a gauge for measuring strain in a surface
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sundial
timepiece that indicates the daylight hours by the shadow that the gnomon casts on a calibrated dial
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scribing block, surface gage, surface gauge
gauge consisting of a scriber mounted on an adjustable stand; used to test the accuracy of plane surfaces
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tachograph
a tachometer that produces a graphical record of its readings; used to record the speed and duration of trips in a motor vehicle
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taximeter
a meter in a taxi that registers the fare (based on the length of the ride)
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telethermometer
a thermometer that registers the temperature at some distant point
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thermocouple, thermocouple junction
a kind of thermometer consisting of two wires of different metals that are joined at both ends; one junction is at the temperature to be measured and the other is held at a fixed lower temperature; the current generated in the circuit is proportional to the temperature difference
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electric thermometer, thermel, thermoelectric thermometer
a thermometer that uses thermoelectric current to measure temperature
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thermograph, thermometrograph
a thermometer that records temperature variations on a graph as a function of time
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thermogravimeter, thermohydrometer
a hydrometer that includes a thermometer
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thermopile
a kind of thermometer for measuring heat radiation; consists of several thermocouple junctions in series
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3d radar, three-dimensional radar
radar that will report altitude as well as azimuth and distance of a target
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time-delay measuring instrument, time-delay measuring system
chronoscope for measuring the time difference between two events
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timer
a timepiece that measures a time interval and signals its end
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vacuum gage, vacuum gauge
a gauge for indicating negative atmospheric pressure
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vernier caliper, vernier micrometer
a caliper with a vernier scale for very fine measurements
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voltmeter
meter that measures the potential difference between two points
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volumeter
a meter to measure the volume of gases, liquids, or solids (either directly or by displacement)
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ticker, watch
a small portable timepiece
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water gage, water gauge, water glass
gauge for indicating the level of water in e.g. a tank or boiler or reservoir
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water meter
meter for measuring the quantity of water passing through a particular outlet
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weatherglass
a simple barometer for indicating changes in atmospheric pressure
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weather radar
radar that is able to detect clouds and precipitation
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weighbridge
platform scale flush with a roadway for weighing vehicles and cattle etc
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wet-bulb thermometer
a thermometer with a bulb that is covered with moist muslin; used in a psychrometer to measure humidity
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wire gage, wire gauge
gauge for measuring the diameter of wire