fat (f?t)n.1. a. The ester of glycerol and one, two, or three fatty acids.b. Any of various soft, solid, or semisolid organic compounds constituting the esters of glycerol and fatty acids and their associated organic groups.c. A mixture of such compounds occurring widely in organic tissue, especially in the adipose tissue of animals and in the seeds, nuts, and fruits of plants.d. Animal tissue containing such substances.e. A solidified animal or vegetable oil.2. Obesity; corpulence: health risks associated with fat.3. Unnecessary excess: “would drain the appropriation’s fat without cutting into education’s muscle” (New York Times).adj. fat·ter, fat·test 1. Having much or too much fat or flesh; plump or obese.2. Full of fat or oil; greasy.3. Abounding in desirable elements: a paycheck fat with bonus money.4. Fertile or productive; rich: “It was a fine, green, fat landscape” (Robert Louis Stevenson).5. Having an abundance or amplitude; well-stocked: a fat larder.6. a. Yielding profit or plenty; lucrative or rewarding: a fat promotion.b. Prosperous; wealthy: grew fat on illegal profits.7. a. Thick; large: a fat book.b. Puffed up; swollen: a fat lip.tr. & intr.v. fat·ted, fat·ting, fats To make or become fat; fatten.Idioms: a fat lot Slang Very little or none at all: a fat lot of good it will do him. fat chance Slang Very little or no chance. the fat is in the fire Bad consequences are sure to follow; trouble lies ahead. the fat of the land Desirable resources, especially when acquired with little effort: I fantasized about buying a farm and living off the fat of the land.[Middle English, from Old English f?tt, fatted; see pei?- in Indo-European roots.]fat?ly adv.fat?ness n.Synonyms: fat, overweight, obese, corpulent, portly, stout, pudgy, rotund, plump1, chubby These adjectives mean having an abundance and often an excess of flesh. Fat implies more weight than one desires or than is considered desirable by social norms: was getting fat and decided to exercise. Overweight conveys the sense that the weight is above a medical standard for age or height and may be unhealthy: oversized garments for overweight customers. Another word with medical connotations, obese means grossly overweight: “a woman of robust frame … though stout, not obese” (Charlotte Brontë). While corpulent also refers to conspicuous body weight, it is not always as judgmental a term as obese: the corpulent figure of the seated Buddha. Portly refers to bulk combined with a stately or imposing bearing: A portly guard blocked the doorway. Stout denotes a thickset, bulky figure: a painting of stout peasants. Pudgy means short and fat: pudgy fingers. Rotund refers to the roundness of figure associated with a spreading midsection: “this pink-faced rotund specimen of prosperity” (George Eliot). Plump and chubby apply to a pleasing fullness of figure: a plump little toddler; chubby cheeks.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.fat (fæt) n1. (Elements & Compounds) any of a class of naturally occurring soft greasy solids that are esters of glycerol and certain fatty acids. They are present in some plants and in the adipose tissue of animals, forming a reserve energy source, and are used in making soap and paint and in the food industry. See also oil12. (Biochemistry) vegetable or animal tissue containing fat. 3. corpulence, obesity, or plumpness4. the best or richest part of something5. (Theatre) a part in a play that gives an actor a good opportunity to show his talents6. chew the fat slang a. to argue over a pointb. to talk idly; gossip7. the fat is in the fire an irrevocable action has been taken, esp one from which dire consequences are expected8. the fat of the land the best that is obtainableadj, fatter or fattest9. having much or too much flesh or fat10. (Cookery) consisting of or containing fat; greasy: fat pork. 11. profitable; lucrative: a fat year. 12. affording great opportunities: a fat part in the play. 13. fertile or productive: a fat land. 14. thick, broad, or extended: a fat log of wood. 15. (Chemistry) having a high content of a particular material or ingredient, such as resin in wood or oil in paint16. plentifully supplied: a fat larder. 17. slang empty; stupid: get this into your fat head. 18. slang very little or none; minimal (in phrases such as a fat chance, a fat lot of good, etc)vb, fats, fatting or fattedto make or become fat; fatten[Old English f?tt, past participle of f?tan to cram; related to Old Norse feita, Old High German feizen to fatten; compare Gothic f?tjan to adorn] ?fatless adj ?fat?like adj ?fatly adv ?fatness n ?fattish adjCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014fat (fæt) n., adj. fat?ter, fat?test, v., fat?ted, fat?ting. n. 1. any of several oily solids or semisolids that are water-insoluble esters of glycerol with fatty acids and are the chief component of animal adipose tissue and many plant seeds: used in cookery and in the manufacture of soaps and other products. 2. animal tissue containing much of this substance. 3. obesity; corpulence. 4. the richest or best part of anything: the fat of the land. 5. an overabundance or excess; superfluity or reserve: a budget without fat. adj. 6. having too much flabby tissue; corpulent; obese: a fat person. 7. plump; well-fed: a fat chicken. 8. consisting of or containing fat; greasy; oily: fat meat. 9. profitable; lucrative: a fat job in government. 10. affording good opportunities, esp. for gain: a fat recording contract. 11. wealthy; prosperous; rich: to grow fat on bribes and graft. 12. big, broad, or extended; thick: a fat roll of fifty-dollar bills. 13. plentiful; abundant: a fat supply of food. 14. plentifully supplied: a fat larder. 15. dull; stupid. 16. (of paint) having more oil than pigment. Compare lean 2 (def. 6). 17. fertile, as land; productive. v.t., v.i. 18. to make or become fat. Idioms: 1. fat chance, a very slight chance; small probability. 2. the fat is in the fire, something has been done or started that cannot be reversed and will probably have dramatic or serious consequences. [before 1000; Middle English; Old English f?tt] fat?less, adj. fat?ness, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.fat (f?t) Any of a large number of oily compounds that are widely found in plant and animal tissues and serve mainly as a reserve source of energy. In mammals, fat is deposited beneath the skin and around the internal organs, where it also protects and insulates against heat loss. Fats are made chiefly of triglycerides, each molecule of which contains three fatty acids. See more at saturated fat, unsaturated fat.Did You Know? Millions of Americans are trying to lose adipose tissue, also known as fat. It’s hard to do, because we love to eat fatty foods, which usually taste good. Many of the chemicals that give food pleasant flavors are easily dissolved in fats?the fattier a food is, the more of these flavorful compounds it may carry. Having some fat is necessary. Just as a city keeps extra water in a reservoir, we store reservoirs of energy most efficiently as fat. An ounce of fat, for example, contains more than twice as much stored energy?calories?as does an ounce of protein or carbohydrates. Fat is also an excellent insulator. Sea mammals, such as whales, have thick layers of fat, called blubber, to keep them comfortable in chilly waters. A whale’s blubber may be two feet thick?now that’s fat!The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.fatPast participle: fattedGerund: fattingImperativePresentPreteritePresent ContinuousPresent PerfectPast ContinuousPast PerfectFutureFuture PerfectFuture ContinuousPresent Perfect ContinuousFuture Perfect ContinuousPast Perfect ContinuousConditionalPast ConditionalImperativefatfatPresentI fatyou fathe/she/it fatswe fatyou fatthey fatPreteriteI fattedyou fattedhe/she/it fattedwe fattedyou fattedthey fattedPresent ContinuousI am fattingyou are fattinghe/she/it is fattingwe are fattingyou are fattingthey are fattingPresent PerfectI have fattedyou have fattedhe/she/it has fattedwe have fattedyou have fattedthey have fattedPast ContinuousI was fattingyou were fattinghe/she/it was fattingwe were fattingyou were fattingthey were fattingPast PerfectI had fattedyou had fattedhe/she/it had fattedwe had fattedyou had fattedthey had fattedFutureI will fatyou will fathe/she/it will fatwe will fatyou will fatthey will fatFuture PerfectI will have fattedyou will have fattedhe/she/it will have fattedwe will have fattedyou will have fattedthey will have fattedFuture ContinuousI will be fattingyou will be fattinghe/she/it will be fattingwe will be fattingyou will be fattingthey will be fattingPresent Perfect ContinuousI have been fattingyou have been fattinghe/she/it has been fattingwe have been fattingyou have been fattingthey have been fattingFuture Perfect ContinuousI will have been fattingyou will have been fattinghe/she/it will have been fattingwe will have been fattingyou will have been fattingthey will have been fattingPast Perfect ContinuousI had been fattingyou had been fattinghe/she/it had been fattingwe had been fattingyou had been fattingthey had been fattingConditionalI would fatyou would fathe/she/it would fatwe would fatyou would fatthey would fatPast ConditionalI would have fattedyou would have fattedhe/she/it would have fattedwe would have fattedyou would have fattedthey would have fattedCollins English Verb Tables © HarperCollins Publishers 2011