ergothioneine

noun

Save Word

er·go·thi·o·ne·ine | \ ˌər-gō-ˌthī-ˈō-nē-ˌēn

, -ˈän-ē-

Medical Definition of ergothioneine

: a crystalline betaine C₉H₁₅N₃O₂S that is found especially in ergot and blood

— called also thioneine

Learn More About ergothioneine

Dictionary Entries Near ergothioneine

ergotherapy

ergothioneine

ergotinine

Cite this Entry

“Ergothioneine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/ergothioneine. Accessed 17 Sep. 2021.

Style: MLA

MLA

Chicago

APA

Merriam-Webster Check Mark Icon

WORD OF THE DAY

precarious

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Spelling Words Quiz

Which is the correct spelling?

acommadate accomodate
acommodate accommodate

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ

Spell words. Make bears.

TAKE THE QUIZ

“In Vino Veritas” and Other Latin Phrases to Live By
Top 10 Latin Phrases
7 Shakespearean Insults to Make Life More Interesting
One for each day of the week
Word Well Used: 'Resplendent'
The joy of dictionaries
Machiavellianism and (A Whole Lot) More
Top 10 Unusually Long and Interesting Words, Vol. 1

'Everyday' vs. 'Every Day'
A simple trick to keep them separate
What Is 'Semantic Bleaching'?
How 'literally' can mean "figuratively"
Literally
How to use a word that (literally) drives some pe...
Is Singular 'They' a Better Choice?
The awkward case of 'his or her'

That Sounds Right/Write/Wright
A tricky quiz about soundalike words
Take the quiz
Name That Thing: Animal Edition
How many animals can you identify?
Take the quiz
Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz
AlphaBear 2
AlphaBear 2
Play the game