Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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astronomical unit a unit of length based on the average distance of the earth from the sun, equal to about 149.6 million kilometers or ninety-three million miles.
atomic mass unit a unit equal to one twelfth of the mass of an atom of the most abundant kind of carbon, equal to 1.6605 times 1024 gram.
British thermal unit a unit of heat equal to the amount needed to raise the temperature of one pound of water one degree Fahrenheit, or equal to about 252 calories. (abbr.: Btu)
central processing unit (in computing) the part of a computer that interprets program commands and executes its instructions.
stock keeping unit a number that is given to a specific product in a store. The number is on a small label on the product. People use stock keeping units to keep track of inventory.
system unit the main part of a computer, which houses its essential components.
unit cell the smallest structural unit of a crystal.
unit character a characteristic or trait determined by one gene or a gene pair.
unit pricing the pricing of consumer goods on the basis of cost per unit of measure, such ascents per ounce.