Source: Merriam-Webster Medical Dictionary
ergothioneine noun
er·go·thi·o·ne·ine
: a crystalline betaine C9H15N3O2S that is found especially in ergot and blood. Called also thioneine.
“Ergothioneine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster. Accessed 10 Mar. 2026.
