any of several red or orange isomeric hydrocarbons, CH, found in butter and in carrots and certain other vegetables, and changed into vitamin A in the liver
sometimes called car′o·tin
Origin of carotene; from Classical Latin carota, carrot + -ene
An orange-yellow to red crystalline pigment, C40H56, found in animal tissue and certain plants, such as carrots and squash. It exists in several isomeric forms and is converted to vitamin A in the liver.
Origin of caroteneGerman Karotin, from Latin carōta, carrot; see carrot.
- (organic chemistry) A class of tetraterpene plant pigments; they vary in colour from yellow, through orange to red, this colour originating in a chain of alternating single and double bonds.
- (organic chemistry) Specifically, a number of isomers of tetraterpene hydrocarbons, C40H56, (especially beta-carotene), present in carrots etc, which are converted into vitamin A in the liver.
From car(r)ot + -ene.