1

fat

play
adjective \ ˈfat \

Definition of fat

fatter; fattest
1 :notable for having an unusual amount of fat:
a :plump
  • a cute, fat little baby
b :having excessive body fat
  • … a woman of medium height, a little plump but not fat
  • —Mary McCarthy
c of a meat animal :fattened for market
d of food :oily, greasy
  • a fat, rich cheese
2 a :well filled out :thick, big
  • a fat book
b :full in tone and quality :rich
  • a gorgeous fat bass voice
  • Irish Digest
c :well stocked
  • a fat larder
d :prosperous, wealthy
  • grew fat on the war
  • Time
e :being substantial and impressive
  • a fat bank account
3 a :richly rewarding or profitable
  • a fat part in a movie
  • a fat contract
b :practically nonexistent
  • a fat chance
4 :productive, fertile
  • a fat year for crops
5 informal :stupid, foolish
  • " … if he had had any sense in his fat head, he would have done it long ago, dash him!"
  • —P. G. Wodehouse
6 :being swollen
  • got a fat lip from the fight
7 of a baseball pitch :easy to hit

fatness

noun

Examples of fat in a Sentence

  1. The dog is getting fat because you feed him too much.

  2. I can't believe I've let myself get so fat.

  3. a fat book of poems

  4. a truck with fat tires

Recent Examples of fat from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fat.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of fat

Middle English, from Old English fǣtt, past participle of fǣtan to cram; akin to Old High German feizit fat


2

fat

verb

Definition of fat

fatted; fatting
transitive verb
:to make fat :fatten

Recent Examples of fat from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fat.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of fat

see 1fat


3

fat

noun

Definition of fat

1 :animal tissue consisting chiefly of cells distended with greasy or oily matter
2 a :oily or greasy matter making up the bulk of adipose tissue and often abundant in seeds
b :any of various compounds of carbon, hydrogen, and oxygen that are glycerides of fatty acids, are the chief constituents of plant and animal fat, are a major class of energy-rich food, and are soluble in organic solvents but not in water
c :a solid or semisolid fat as distinguished from an oil
3 :the best or richest part
4 :obesity
5 :something in excess :superfluity
  • trim the fat from the news operation
  • —Ray Olson

fatless

play \ˈfat-ləs\ adjective

Examples of fat in a Sentence

  1. people with excess body fat

  2. a diet and exercise program to help you gain muscle and lose fat

  3. Nuts contain a lot of fat.

  4. Trim the fat from the meat before you cook it.

  5. a diet low in fats

  6. fats like butter and olive oil

  7. trim the fat off the budget

Recent Examples of fat from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fat.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of fat

see 1fat

Other Biochemistry Terms



FAT Defined for English Language Learners

fat

play
adjective

Definition of fat for English Language Learners

  • : having a lot of extra flesh on your body : having a lot of body fat

  • : having a full, rounded form

  • : unusually wide or thick


fat

noun

Definition of fat for English Language Learners

  • : the soft flesh on the bodies of people and animals that helps keep the body warm and is used to store energy

  • : an oily solid or liquid substance in food

  • : an amount that is more than what is usual or needed


FAT Defined for Kids

1

fat

play
adjective \ ˈfat \

Definition of fat for Students

fatter; fattest
1 :having much body fat
  • a fat pig
2 :1thick 1
  • a fat book
3 :richly rewarding or profitable
  • He signed a fat contract.
4 :swollen up
  • I fell and got a fat lip.

fatness

noun

2

fat

noun

Definition of fat for Students

1 :animal or plant tissue containing much greasy or oily material
2 :any of numerous compounds of carbon, hydrogen, and oxygen that make up most of animal or plant fat and that are important to nutrition as sources of energy
3 :a solid fat as distinguished from an oil
4 :the best or richest part
  • the fat of the land

Medical Dictionary

1

fat

play
adjective \ ˈfat \

medical Definition of fat

fatter; fattest
:notable for having an unusual amount of fat; especially :fleshy with superfluous flabby tissue that is not muscle :obese

fatness

noun

2

fat

noun

medical Definition of fat

1 :animal tissue consisting chiefly of cells distended with greasy or oily matter — see brown fat
2 a :oily or greasy matter making up the bulk of adipose tissue
b :any of numerous compounds of carbon, hydrogen, and oxygen that are glycerides of fatty acids, are the chief constituents of plant and animal fat, are a major class of energy-rich food, and are soluble in organic solvents (as ether) but not in water
c :a solid or semisolid fat as distinguished from an oil
3 :the condition of fatness :obesity


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