English edit

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Etymology edit

From oestr(us) +‎ -in.

Pronunciation edit

Noun edit

oestrin (countable and uncountable, plural oestrins)

  1. (biochemistry, now rare) An oestrogen, specifically oestrone.
    • 1998, Georgina Ferry, Dorothy Hodgkin: A Life:
      Encouraged by his friends Solly Zuckerman and J. B. S. Haldane, Bernal had obtained crystals of calciferol and the female sex hormone oestrin.

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