(biochemistry, steroids) A steroid hormone that stimulates development of male secondary sexual characteristics, produced mainly in the testes, but also in the ovaries and adrenal cortex.

Having qualities associated with testosterone; macho

plural of testosterone

Relating to testosterone; characterized by aggressive masculinity.

In a testosteronic manner.

In a testosteronal way.

(informal) Full of testosterone; characterised by masculine sexual drive.

(organic chemistry, pharmacology) The testosterone ester of undecanoic acid that is an androgen and anabolic steroid medication - C₃₀H₄₈O₃.

(pathology) The presence of testosterone in the blood