What does adipose mean?
Adipose is an adjective describing something relating to or consisting of animal fat, used chiefly in scientific and medical contexts. Its most familiar application is 'adipose tissue' — the specialized connective tissue in which the bodies of humans and other animals store energy as fat. Adipose tissue serves vital functions beyond energy storage: it insulates the body against cold, cushions organs against impact, and releases hormones that regulate metabolism. The word also appears in zoological descriptions, such as the 'adipose fin' found on salmon and catfish. Because it is precise and clinical, adipose offers a neutral way to discuss body fat without the emotional charge carried by everyday terms like 'flabby' or 'overweight'. Derived from the Latin word for fat, adeps, it entered English in the early seventeenth century and remains a staple of anatomy textbooks, nutrition science, and medical writing, where researchers distinguish white adipose tissue, which stores energy, from brown adipose tissue, which burns it to generate heat.
Of, relating to, or consisting of animal fat; fatty, especially with reference to bodily tissue.
"Excess adipose tissue accumulates around the abdomen when calorie intake consistently exceeds expenditure."
Used almost exclusively in scientific, medical, or formal descriptive contexts; ordinary conversation prefers 'fat' or 'fatty'.
(Chiefly technical) Fat; animal fat, especially as a bodily substance or deposit.
"The specimen was preserved in a layer of adipose."
Rare compared with the adjective form; encountered mainly in older or highly technical texts.
Bears survive winter on it, whales stay warm because of it, and scientists now treat brown adipose tissue as a potential weapon against obesity — your body's own fat-burning furnace.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of adipose
Adipose comes from the Latin 'adiposus', meaning 'fatty', formed from 'adeps' (genitive 'adipis'), the classical Latin word for animal fat or lard. The adjective passed into English in the early seventeenth century, largely through anatomical and medical writing. Related English borrowings from the same Latin root include 'adipocere', the waxy substance into which buried fatty tissue can decompose, and 'adipic acid', a compound first obtained from rendered fats.
Related word forms
How adipose is actually used
Primarily a technical term used in anatomy, physiology, medicine, and zoology rather than everyday speech; in casual contexts speakers usually say 'fat' or 'fatty'. It carries a neutral, scientific connotation rather than a judgmental one, which makes it useful for describing body fat without stigma.
Easily confused with adipose
A lipid is a broad class of organic molecules including fats, oils, and waxes, whereas adipose refers specifically to fatty tissue or a fatty character in living organisms.