noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A semisynthetic steroidal progestogen, used as an oral contraceptive in combination with ethinylestradiol. uncountable

Etymology

From diene + -o- + -gest (“steroid, progestogen”).

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