antiestrogen

noun
an·​ti·​es·​tro·​gen | \ ˌan-tē-ˈe-strə-jən How to pronounce antiestrogen (audio) , ˌan-tī-, British -ˈē- \
variants: or British antioestrogen

Definition of antiestrogen

: a substance (such as tamoxifen) that inhibits the physiological action of an estrogen … acts like an antiestrogen in breast and uterine tissue, thus protecting against hormone-stimulated cancers …— Jane E. Brody

Other Words from antiestrogen

antiestrogenic or British antioestrogenic \ ˌan-​tē-​ˌe-​strə-​ˈje-​nik How to pronounce antioestrogenic (audio) , ˌan-​tī-​ , British  -​ˌē-​ \ adjective
antiestrogenic agents an antiestrogenic effect

First Known Use of antiestrogen

1965, in the meaning defined above

Keep scrolling for more

Learn More about antiestrogen

Time Traveler for antiestrogen

Time Traveler

The first known use of antiestrogen was in 1965

See more words from the same year

Statistics for antiestrogen

Cite this Entry

“Antiestrogen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiestrogen. Accessed 29 Oct. 2020.

Keep scrolling for more

More Definitions for antiestrogen

antiestrogen

noun
an·​ti·​es·​tro·​gen
variants: or chiefly British antioestrogen \ -​ˈes-​trə-​jən, British -​ˈēs-​ How to pronounce antioestrogen (audio) \

Medical Definition of antiestrogen

: a substance (as tamoxifen) that inhibits the physiological action of an estrogen

Other Words from antiestrogen

antiestrogenic or chiefly British antioestrogenic \ -​ˌes-​trə-​ˈjen-​ik, British -​ˌēs-​ How to pronounce antioestrogenic (audio) \ adjective
antiestrogenic agents

Comments on antiestrogen

What made you want to look up antiestrogen? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Here Be Dragons: A Creature Identification Quiz

  • monster werewolf photo
  • Which is a synonym of werewolf?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!