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Answer for the clue "Pigment that's a provitamin ", 8 letters:
carotene

Alternative clues for the word carotene

Word definitions for carotene in dictionaries

Wiktionary Word definitions in Wiktionary
n. 1 (context organic chemistry English) 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 bond and double bonds. 2 (context organic chemistry English) ...

WordNet Word definitions in WordNet
n. an orange isomer of an unsaturated hydrocarbon found in many plants; is converted into vitamin A in the liver [syn: provitamin A , carotin ] yellow or orange-red fat-soluble pigments in plants

Usage examples of carotene.

She was tell-tagging great herds of beasts, varieties of hadrosaur she had not previously noted, and was nearly to the Great Rift where the carotene grass grew.

Constantly taking Vitamin E, constantly grazing on fruits and vegetables for their beta carotene and potassium, I mean you wouldnt believe how much carrot-juice he drank, and as for potassium, hey, potassium could have been his middle name, he had a real obsession about it, he practically had grapes and bananas coming out of his ears.