noun🔗ShareQuinineA bitter colourless powder, an alkaloid derived from cinchona bark, used to treat malaria and as an ingredient of tonic water."During their trip to a region with malaria, they took pills containing quinine to prevent the disease. "Pendant leur voyage dans une région touchée par le paludisme, ils ont pris des pilules contenant de la quinine pour prévenir la maladie.medicinesubstancechemistrybiochemistryChat with AIVocabulary GamePractice Reading