carotenoid Syllabification: (ca·rot·e·noid)Pronunciation: /kəˈrätnˌoid/Definition of carotenoid noun Chemistry any of a class of mainly yellow, orange, or red fat-soluble pigments, including carotene, which give color to plant parts such as ripe tomatoes and autumn leaves. They are terpenoids based on a structure having the formula C40H56. carotenoid in other Oxford dictionaries Definition of carotenoid in the British & World English dictionary
