Oestrogen is a hormone produced in the ovaries of female animals. Oestrogen controls the reproductivecycle and prepares the body for pregnancy.
As ovulation gets nearer, oestrogen levels rise.
oestrogen in British English
(ˈiːstrədʒən, ˈɛstrə-) or US estrogen
noun
any of several steroid hormones, that are secreted chiefly by the ovaries and placenta, that induce oestrus, stimulate changes in the female reproductive organs during the oestrous cycle, and promote development of female secondary sexual characteristics
Derived forms
oestrogenic (ˌiːstrəˈdʒɛnɪk, ˌɛstrə-) or US estrogenic (ˌɛstrəˈdʒɛnɪk, ˌiːstrə-)
adjective
oestrogenically (ˌoestroˈgenically) or US estrogenically (ˌestroˈgenically)
adverb
Word origin
C20: from oestrus + -gen
oestrogen in American English
(ˈistrəgən; ˈɛstrəgən)
noun
Brit. var. of
estrogen
Examples of 'oestrogen' in a sentence
oestrogen
This improves the balance of oestrogen and testosterone.
Times, Sunday Times (2006)
The female hormone oestrogen is known to affect brain chemistry.
Times, Sunday Times (2008)
Treatments containing hormone oestrogen may cut the risk of the potentially deadly condition.
The Sun (2011)
American researchers claimed that it can mimic the female hormone oestrogen.
The Sun (2007)
It is an important constituent of hormones including oestrogen, testosterone and the adrenal hormones.
Times, Sunday Times (2006)
Researchers have discovered the hormone oestrogen found in women binds itself to a gene known as AID.
The Sun (2009)
The cartilage in the ear is floppy at birth because of the effect of oestrogen, a hormone produced by the mother, on its structure.
Times, Sunday Times (2006)
In other languages
oestrogen
British English: oestrogen NOUN
Oestrogen is a hormone produced in the ovaries of female animals. Oestrogen controls the reproductive cycle and prepares the body for pregnancy.