Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “oestrogen”

oestrogen

noun [U] UK (US estrogen)     /ˈiː.strə.dʒən/ US  /ˈes.trə-/
a female hormone that causes development and change in the reproductive organs (= organs involved in producing babies )Animal biochemistryAnimal reproduction
(Definition of oestrogen noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of oestrogen

Definitions of “oestrogen” in other dictionaries

Word of the Day

best man

a male friend or relation of the bridegroom who stands with him and helps him during a marriage ceremony

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More