noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A natural estrogenic hormone that is a ketone C₁₈H₂₂O₂ found in the body chiefly as a metabolite of and less potent than estradiol, that is also secreted especially by the ovaries, and that is used to treat various conditions (such as ovarian failure and menopausal symptoms) relating to estrogen deficiency. US, countable, uncountable
2. 2
   a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency wordnet

Synonyms

All synonyms

theelinestronoloestronetheelin

Etymology

From estr- + -one.

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