fenestrel

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English

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English Wikipedia has an article on:
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Etymology

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From phen- +‎ -estr- (estrogen).

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

Noun

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fenestrel (uncountable)

  1. (pharmacology) A synthetic, non-steroidal estrogen developed as a postcoital contraceptive in the 1960s but was marketed.