-ine4Pronunciation: /iːn, ɪn/Definition of -ine suffix 1forming chiefly abstract nouns and diminutives such as doctrine, medicine, figurine. 2 Chemistry forming names of alkaloids, halogens, amines, amino acids, and other substances:cocaine chlorine thymineOrigin:from French, from the Latin feminine form -ina-ine in other Oxford dictionaries Definition of -ine in the US English dictionary