Definition of adrenarche in English:

adrenarche

noun

Medicine
  • The first appearance of pubic and axillary hair in a child, occurring as a result of increased hormone synthesis by the adrenal cortex; the time at which this occurs, typically around eight years of age.

Origin

1940s. From adren- + -arche. Compare pubarche.

Pronunciation:

adrenarche

/ˌadrɪˈnɑːki/