sex hormone noun
: a steroid hormone (as estradiol, progesterone, androstenedione, or testosterone) that is produced especially by the ovaries, testes, or adrenal cortex and that exerts estrogenic, progestational, or androgenic activity on the growth or function of the reproductive organs or on the development of secondary sex characteristics
Seen & Heard
What made you want to look up sex hormone? Please tell us where you read or heard it (including the quote, if possible).