fatty1

[fat-ee] /ˈfæt i/
adjective, fattier, fattiest.
1.
consisting of, containing, or resembling fat:
fatty tissue.
2.
Pathology. characterized by overproduction or excessive accumulation of fat.
Origin
1350-1400; Middle English; see fat, -y1
Related forms
fattily, adverb
fattiness, noun

fatty2

[fat-ee] /ˈfæt i/
noun, plural fatties. Informal: Often Disparaging and Offensive.
1.
a person who is overweight or obese.
Origin
1790-1800; fat + -y2
Examples from the web for fatty
  • It is a triglyceride, an ester derived from glycerol and three fatty acid groups.
  • The oil from some algae have high levels of unsaturated fatty acids.
British Dictionary definitions for fatty

fatty

/ˈfætɪ/
adjective -tier, -tiest
1.
containing, consisting of, or derived from fat
2.
having the properties of fat; greasy; oily
3.
(esp of tissues, organs, etc) characterized by the excessive accumulation of fat
noun (pl) -ties
4.
(informal) a fat person
Derived Forms
fattily, adverb
fattiness, noun
Word Origin and History for fatty
adj.

late 14c., from fat + -y (2). As a name for a fat person, attested by 1797 (with -y (3)).

fatty in Medicine

fatty fat·ty (fāt'ē)
n.

  1. Containing or composed of fat.

  2. Characteristic of fat; greasy.

  3. Derived from or chemically related to fat.

Slang definitions & phrases for fatty

fatty

noun
  1. A fat person: designed to keep all us fatties from committing hara-kiri (1797+)
  2. A thick marijuana cigarette (1980s+ Narcotics)