estradiol

noun
es·​tra·​di·​ol | \ ˌe-strə-ˈdī-ˌȯl How to pronounce estradiol (audio) , -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

Examples of estradiol in a Sentence

Recent Examples on the Web

For example, levels of the main female hormone estradiol drop significantly after menopause, which directly affects the way women carry fat, Dr. Kapoor says. Jo Yurcaba, Woman's Day, "Why Menopause Causes Weight Gain and Why You Shouldn't Worry," 21 May 2019 Low levels of estradiol can point to PCOS or pituitary issues. Jennifer Gerson, Marie Claire, "What Kind of Testing Will My Fertility Specialist Conduct?," 1 Oct. 2018 Conversely, estradiol may also be able to stimulate mast cells to activate and release histamine more easily, Dr. Shah says, so this could be a cycle of sorts. Krissy Brady, SELF, "Is Your Food Allergy Really a Histamine Intolerance?," 27 July 2018 Estradiol blood test Secreted by maturing follicles, estradiol is a form of estrogen, the major female reproductive hormone. Jennifer Gerson, Marie Claire, "What Kind of Testing Will My Fertility Specialist Conduct?," 1 Oct. 2018 The prices for estradiol products for vaginal use have risen significantly over the past five years. Katie Thomas, New York Times, "Prices Keep Rising for Drugs Treating Painful Sex in Women," 3 June 2018 The study’s authors prescribed progesterone and estradiol, hormones that can influence lactation and that normally occur in pregnant women. Ceylan Yeginsu, New York Times, "Transgender Woman Breast-Feeds Baby After Hospital Induces Lactation," 15 Feb. 2018 Tyler’s experiments looked at one type of synthetic estrogen: ethinyl estradiol, or EE2, which is found in oral contraceptives like TriNessa and Seasonique. Becky Little, Smithsonian, "How One Bad Science Headline Can Echo Across the Internet," 1 Aug. 2017 One environmental estrogen is ethinyl estradiol—a chemical found in birth control pills. National Geographic, "Why Are These Male Fish Growing Eggs?," 3 Feb. 2016

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.

See More

First Known Use of estradiol

1934, in the meaning defined above

History and Etymology for estradiol

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

Keep scrolling for more

Learn More about estradiol

Statistics for estradiol

Last Updated

5 Jun 2019

Look-up Popularity

Time Traveler for estradiol

The first known use of estradiol was in 1934

See more words from the same year

Keep scrolling for more

More Definitions for estradiol

estradiol

noun
es·​tra·​di·​ol | \ ˌes-trə-ˈdī-ˌȯl How to pronounce estradiol (audio) , -ˌōl How to pronounce estradiol (audio) \
variants: or chiefly British oestradiol \ ˌē-​strə-​ˈdī-​ˌȯl How to pronounce oestradiol (audio) , ē-​ˈstrad-​ē-​ˌȯl How to pronounce oestradiol (audio) , -​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

More from Merriam-Webster on estradiol

Britannica.com: Encyclopedia article about estradiol

Comments on estradiol

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

WORD OF THE DAY

showing great care, attention, and effort

Get Word of the Day daily email!

Test Your Vocabulary

Finance Words Quiz

  • a-piggy-bank
  • The etymology of mortgage is related most closely to which two words?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Syn City

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!