Meaning ofquininein English

Noun

1. a bitter alkaloid (C20H24N2O2) from cinchona bark
   The doctor prescribed quinine to treat the patient's malaria.
2. a powder used to treat malaria
   Quinine is extracted from the bark of the cinchona tree.
3. an ingredient in tonic water (colourless, bitter)
   The tonic water contained quinine, which gave it a bitter taste.