stilbestrol

noun

stil·​bes·​trol stil-ˈbe-ˌstrȯl How to pronounce stilbestrol (audio) -ˌtrōl How to pronounce stilbestrol (audio)
: diethylstilbestrol

Word History

Etymology

stilbene + estrus + -ol entry 1

First Known Use

circa 1939, in the meaning defined above

Time Traveler
The first known use of stilbestrol was circa 1939

Rhymes for stilbestrol

See All Rhymes for stilbestrol

Browse Nearby Words

stilbene dye
stilbestrol
stilbite
See all Nearby Words

Cite this Entry

“Stilbestrol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stilbestrol. Accessed 27 Mar. 2025.

Copy Citation

Share

Medical Definition

Love words? Need even more definitions?

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

Popular in Grammar & Usage

See More

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

The Difference Between 'i.e.' and 'e.g.'

Why is '-ed' sometimes pronounced at the end of a word?

Words You Always Have to Look Up

Democracy or Republic: What's the difference?
See More

Popular in Wordplay

See More

Top 10 Sophisticated Insults

Flower Etymologies For Your Spring Garden

More Words with Remarkable Origins

Terroir, Oenophile, & Magnum: Ten Words About Wine

8 Words for Lesser-Known Musical Instruments
See More

Popular

See More

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Top 10 Sophisticated Insults

Flower Etymologies For Your Spring Garden
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
dog-in-disguise
Rhyme Disguise Quiz Pair up words that look different but sound alike.
See All