Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

quinine

play
noun qui·nine \ˈkwī-ˌnīn also ˈkwi- or kwi-ˈnīn or ki-ˈnēn or kwi-ˈnēn\

Simple Definition of quinine

  • : a drug that is made from the bark of a tree and used especially to treat malaria

Source: Merriam-Webster's Learner's Dictionary

Full Definition of quinine

  1. 1 :  a bitter crystalline alkaloid C20H24N2O2 from cinchona bark used in medicine

  2. 2 :  a salt of quinine used especially as an antipyretic, antimalarial, and bitter tonic

Origin and Etymology of quinine

Spanish quina cinchona, from Quechua kina bark


First Known Use: 1825


QUININE Defined for Kids

quinine

play
noun qui·nine \ˈkwī-ˌnīn\

Definition of quinine for Students

  1. :  a bitter drug obtained from cinchona bark and used to treat malaria




Medical Dictionary

quinine

play play
noun qui·nine \ˈkwī-ˌnīn also ˈkwin-ˌīn, especially British kwin-ˈēn, ˈkwin-ēn\

Medical Definition of quinine

  1. :  a bitter crystalline alkaloid C20H24N2O2 obtained from cinchona bark that is used as a flavoring agent, has antipyretic and analgesic properties, and is administered orally in the form of its salts (as the hydrated sulfate (C20H24N2O2)2·H2SO4·2H2O) as an antimalarial




Learn More about quinine


Seen and Heard

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

WORD OF THE DAY

a very small amount

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alphabet-pasta-spelling-help

Which is the correct spelling?

acommodate accomodate accommodate acommadate
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ