noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The beginning of production of sperm in the testicles at puberty. uncountable

Synonyms

All synonyms

menarchesemenarche

Etymology

From spermo- + -arche, modelled after menarche (“the onset of menstruation”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.