estradiol

play
noun es·tra·di·ol \ ˌe-strə-ˈdī-ˌȯl , -ˌōl \

Definition of estradiol

:a natural estrogenic hormone that is a phenolic alcohol C18H24O2 secreted chiefly by the ovaries, that is the most potent of the naturally occurring estrogens, and that is administered in its natural or semisynthetic esterified form especially to treat menopausal symptoms

Recent Examples of estradiol from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'estradiol.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of estradiol

International Scientific Vocabulary estra- (from estrane parent compound of estradiol, from New Latin estrus + English -ane) + di- + 1-ol


Medical Dictionary

estradiol

play
noun es·tra·di·ol \ ˌes-trə-ˈdī-ˌȯl , -ˌōl \
variants: or chiefly British oestradiol play \ˌē-strə-ˈdī-ˌȯl, ē-ˈstrad-ē-ˌȯl, -ˌōl\

medical Definition of estradiol

:a natural estrogenic hormone that is a phenolic alcohol C18H24O2 secreted chiefly by the ovaries, is the most potent of the naturally occurring estrogens, and is administered in its natural or semisynthetic esterified form especially to treat menopausal symptoms called also dihydrotheelin; see estrace, estraderm, estring

Learn More about estradiol


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

to curse or denounce

Get Word of the Day daily email!

Test Your Vocabulary

Merriam-Webster's New Words Quiz—Fall 2017 Edition!

  • young-plant-shoots
  • Which of the following is a new sense of the word bunny?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

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!