v. t. [ imp. & p. p. Fattened p. pr. & vb. n. Fattening ] [ See Fat, v. t. ] 1. To make fat; to feed for slaughter; to make fleshy or plump with fat; to fill full; to fat. [ 1913 Webster ]

2. To make fertile and fruitful; to enrich; as, to fatten land; to fatten fields with blood. Dryden. [ 1913 Webster ]

v. i. To grow fat or corpulent; to grow plump, thick, or fleshy; to be pampered. [ 1913 Webster ]

And villains fatten with the brave man's labor. Otway. [ 1913 Webster ]

adj. fed until grown and ready for slaughter or for sale in the market; -- of market animals. [ WordNet 1.5 +PJC ]

n. One who, or that which, fattens; that which gives fatness or fertility. [ 1913 Webster ]

n. State or quality of being fatty. [ 1913 Webster ]

a. Somewhat fat; inclined to fatness. [ 1913 Webster ]

Coleridge, a puffy, anxious, obstructed-looking, fattish old man. Carlyle. [ 1913 Webster ]

n. discrimination against people who are overweight.
Syn. -- fatism. [ WordNet 1.5 ]

a. Containing fat, or having the qualities of fat; greasy; gross; as, a fatty substance. [ 1913 Webster ]

Fatty acid (Chem.), any one of the paraffin series of monocarbonic acids, as formic acid, acetic, etc.; -- so called because the higher members, as stearic and palmitic acids, occur in the natural fats, and are themselves fatlike substances. --
Fatty clays. See under Clay. --
Fatty degeneration (Med.), a diseased condition, in which the oil globules, naturally present in certain organs, are so multiplied as gradually to destroy and replace the efficient parts of these organs. --
Fatty heart,
Fatty liver, etc. (Med.), a heart, liver, etc., which have been the subjects of fatty degeneration or infiltration. --
Fatty infiltration (Med.), a condition in which there is an excessive accumulation of fat in an organ, without destruction of any essential parts of the latter. --
Fatty tumor (Med.), a tumor consisting of fatty or adipose tissue; lipoma. [ 1913 Webster ]