force per unit area

/fɔrs pər ˌjunət ˌɛriə/

Definitions of force per unit area

1. noun

   the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit)
   synonyms: pressure, pressure level

   types:

   blood pressure

   the pressure of the circulating blood against the walls of the blood vessels; results from the systole of the left ventricle of the heart; sometimes measured for a quick evaluation of a person's health

   gas pressure

   the pressure exerted by a gas

   head

   the pressure exerted by a fluid

   hydrostatic head

   the pressure at a given point in a liquid measured in terms of the vertical height of a column of the liquid needed to produce the same pressure

   IOP, intraocular pressure

   pressure exerted by the fluids inside the eyeball; regulated by resistance to the outward flow of aqueous humor

   oil pressure

   pressure that keeps oil on the moving parts of an internal-combustion engine

   osmotic pressure

   (physical chemistry) the pressure exerted by a solution necessary to prevent osmosis into that solution when it is separated from the pure solvent by a semipermeable membrane

   corpuscular-radiation pressure, radiation pressure

   the minute pressure exerted on a surface normal to the direction of propagation of a wave

   instantaneous sound pressure, sound pressure

   the difference between the instantaneous pressure at a point in a sound field and the average pressure at that point

   suction

   a force over an area produced by a pressure difference

   vapor pressure, vapour pressure

   the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form)

   acoustic radiation pressure

   (acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave

   air pressure, atmospheric pressure, pressure

   the pressure exerted by the atmosphere

   systolic pressure

   the blood pressure (as measured by a sphygmomanometer) during the contraction of the left ventricle of the heart

   diastolic pressure

   the blood pressure (as measured by a sphygmomanometer) after the contraction of the heart while the chambers of the heart refill with blood

   arterial pressure

   the pressure of the circulating blood on the arteries

   venous pressure

   the pressure exerted on the walls of the veins by the circulating blood

   hypertonicity

   (of a solution) the extent to which a solution has a higher osmotic pressure than some other

   hypotonicity

   (of a solution) the extent to which a solution has a lower osmotic pressure than some other

   type of:

   physical phenomenon

   a natural phenomenon involving the physical properties of matter and energy