Definition of activin in English:

activin

noun

Physiology
  • A gonadal glycoprotein which acts to stimulate the synthesis and secretion of follicle-stimulating hormone by the pituitary gland, and has a number of other physiological functions.

Origin

1980s. From active + -in, after inhibin (which has the opposite biological effect).

Pronunciation:

activin

/ˈaktɪvɪn/