methacholine

noun
metha·​cho·​line | \ ˌmeth-ə-ˈkō-ˌlēn How to pronounce methacholine (audio) \

Medical Definition of methacholine

: a parasympathomimetic drug administered in the form of its crystalline chloride C8H18ClNO2 especially to diagnose hypersensitivity of the bronchial air passages (as in asthma) — see mecholyl, provocholine

Learn More About methacholine

Dictionary Entries Near methacholine

meth

methacholine

methacrylate

See More Nearby Entries 

Cite this Entry

“Methacholine.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/methacholine. Accessed 25 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

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!