noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A phase of the oestrus cycle where the signs of oestrogen stimulation subside, the corpus luteum starts to form, and the uterine lining begins to secrete small amounts of progesterone. uncountable

Etymology

From met- + estrus.

Related phrases

corpus luteum

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