fat

Fat means plump, obese or containing grease or oil. (adjective)

Fat means the semisolid or solid fatty acids found in animal tissue. (noun)

An example of fat is the greasy, white substance found on the edges and inside the meat on a piece of steak.

See fat in Webster's New World College Dictionary

1. containing or full of fat; oily; greasy
2. having much fat in relation to lean: said of meat
3. containing volatile oil: fat coal
4. containing much resin: fat wood
1. fleshy; plump
2. too plump; corpulent; obese
thick; broad: the fat part of the bat
containing something valuable in great quantity; fertile; productive: fat land
profitable; lucrative: a fat job
prosperous
supplied plentifully; ample
stupid; dull
Slang desirable because large or important: a fat role for an actor

noun

any of various mixtures of solid or semisolid triglycerides found in adipose animal tissue or in the seeds of plants: they are insoluble in water but soluble in organic solvents
any such substance used in cooking
fleshiness; plumpness; corpulence
the richest or finest part of anything
anything unnecessary or superfluous that can be trimmed away
Chem. a class of neutral lipids consisting of the various triglycerides: they are called oils if in the liquid state

transitive verb, intransitive verb fatted, fatting

to make or become fat

Related Forms:

See fat in American Heritage Dictionary 4

(făt)

noun

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.
Obesity; corpulence.
The best or richest part: living off the fat of the land.
Unnecessary excess: “would drain the appropriation's fat without cutting into education's muscle” (New York Times).

adjective fat·ter, fat·test

Having much or too much fat or flesh; plump or obese.
Full of fat or oil; greasy.
Abounding in desirable elements.
Fertile or productive; rich: “It was a fine, green, fat landscape” (Robert Louis Stevenson).
Having an abundance or amplitude; well-stocked: a fat larder.
a. Yielding profit or plenty; lucrative or rewarding: a fat promotion.
b. Prosperous; wealthy: grew fat on illegal profits.
a. Thick; large: a fat book.
b. Puffed up; swollen: a fat lip.