testosterone
UK: teˈstɒstərəʊn | US: teˈstɑːstəroʊn
n. a steroid hormone that stimulates development of male secondary sexual characteristics, produced mainly in the testes.
The word "testosterone" combines "testis" (Latin for "testicle," where the hormone is primarily produced) with "ster" (from "sterol," referring to solid compounds like cholesterol, derived from Greek "stereos" meaning "solid"). The suffix "-one" denotes a ketone, a chemical group common in hormones. Coined in 1935, the term reflects the hormone's biological source and chemical structure, linking male physiology (testes) to its steroid nature.
Testosterone levels peak during adolescence in males.
Athletes abusing testosterone risk serious health consequences.
The study examined testosterone's role in aggression.
Synthetic testosterone is used in hormone replacement therapy.
Low testosterone can lead to fatigue and reduced muscle mass.