# testosterone

> English word · Noun · IPA /tɛˈstɒ.stə.ɹəʊn/ · frequency rank #13,071

## Definitions
1. A steroid hormone that stimulates development of male secondary sexual characteristics, produced mainly in the testes, but also in the ovaries and adrenal cortex.
2. Manly behavior, often of an aggressive or foolishly reckless nature.

## Etymology
From test(is) + -o- + -sterone (“steroid hormone”).

## Common misspellings (18)
`etstosterone`, `tesotsterone`, `tesstosterone`, `testosetrone`, `testossterone`, `testosteorne`, `testosternoe`, `testosteroen`, `testosteronne`, `testosterrone`, `testostreone`, `testostterone`, `testotserone`, `testsoterone`, `testtosterone`, `tetsosterone`, `tsetosterone`, `ttestosterone`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/testosterone