Methallenestril
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A synthetic, non-steroidal estrogen formerly used to treat menstrual problems. uncountable
Etymology
From meth- + allene + -estr- (“estrogen”) + -yl.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.