adjective fatter fat′·ter, fattest fat′·test

1. 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
2. 1. fleshy; plump
   2. too plump; corpulent; obese
3. thick; broad the fat part of the bat
4. containing something valuable in great quantity; fertile; productive fat land
5. profitable; lucrative a fat job
6. prosperous
7. supplied plentifully; ample
8. stupid; dull
9. Slang desirable because large or important a fat role for an actor

Etymology: ME < OE fætt, pp. of fætan, to fatten, akin to Ger feist, plump < OHG feizzen, to make fat < IE *poid- < base *pi-, to be fat, distended > Gr pimelē, lard, Sans pīná-, fat

noun

1. 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
2. any such substance used in cooking
3. fleshiness; plumpness; corpulence
4. the richest or finest part of anything
5. anything unnecessary or superfluous that can be trimmed away
6. 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 fat′·ted, fatting fat′·ting

Etymology: ME fatten < OE fættian