norethindrone

noun
nor·eth·in·drone | \ ˌnȯr-ˈe-thən-ˌdrōn \

Definition of norethindrone 

: a synthetic progestational hormone C20H26O2 used in birth control pills often in the form of its acetate

First Known Use of norethindrone

1958, in the meaning defined above

History and Etymology for norethindrone

nor- + ethinyl + hydr- + -one (as in progesterone)

Keep scrolling for more

Learn More about norethindrone

Share norethindrone

Statistics for norethindrone

Look-up Popularity

Time Traveler for norethindrone

The first known use of norethindrone was in 1958

See more words from the same year

Keep scrolling for more

More Definitions for norethindrone

norethindrone

noun
nor·eth·in·drone | \ nȯr-ˈeth-ən-ˌdrōn, ˌnȯr-eth-ˈin- \

Medical Definition of norethindrone 

: a synthetic progestational hormone C20H26O2 used in birth control pills often in the form of its acetate C22H28O3 — see loestrin, minastrin, ortho-novum

More from Merriam-Webster on norethindrone

Britannica.com: Encyclopedia article about norethindrone

Comments on norethindrone

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

WORD OF THE DAY

occurring twice a year or every two years

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

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!