energy unit

Definitions of energy unit
  1. noun
    a unit of measurement for work
    synonyms: heat unit, work unit
    see moresee less
    types:
    show 14 types...
    hide 14 types...
    erg
    a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeter
    eV, electron volt
    a unit of energy equal to the work done by an electron accelerated through a potential difference of 1 volt
    J, joule, watt second
    a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second
    calorie, gram calorie, small calorie
    unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
    Calorie, kilocalorie, kilogram calorie, large calorie, nutritionist's calorie
    a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food
    B.Th.U., BTU, British thermal unit
    a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories
    therm
    a unit of heat equal to 100,000 British thermal units
    watt-hour
    a unit of energy equal to the power of one watt operating for one hour
    B.T.U., Board of Trade unit, kW-hr, kilowatt hour
    a unit of energy equal to the work done by a power of 1000 watts operating for one hour
    foot-pound
    a unit of work equal to a force of one pound moving through a distance of one foot
    foot-ton
    2240 foot-pounds
    foot-poundal
    a unit of work equal to a force of one poundal moving through a distance of one foot
    horsepower-hour
    a unit of work equal to the work done by one horsepower in one hour
    kilogram-meter
    a unit of work equal to the work done by a one kilogram force operating through a distance of one meter
    type of:
    unit, unit of measurement
    any division of quantity accepted as a standard of measurement or exchange
Word Family
EDITOR’S CHOICE

Test prep from the experts

Boost your test score with programs developed by Vocabulary.com’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.

SAT/PSAT

$29.95
  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week
Learn more

TOEFL

$29.95
  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week
Learn more