unit, unit of measurement - any division of quantity accepted as a standard of measurement or exchange; "the dollar is the United States unit of currency"; "a unit of wheat is a bushel"; "change per unit volume"

erg - a cgs unit of work or energy; the work done by a force of one dyne acting over a distance of one centimeter

electron volt, eV - 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

kilocalorie, kilogram calorie, large calorie, nutritionist's calorie, 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., British thermal unit, BTU - 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, kilowatt hour, kW-hr - 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