释义
n.
Chemistry an orange or red plant pigment found in carrots and many other plant structures. It is a terpenoid hydrocarbon with several isomers, of which one (beta-carotene) is important in the diet as a precursor of vitamin A.
【化】 胡萝卜素。
词源
"mid 19th cent.: coined in German from Latin carota (see CARROT)."