ˌkriptō+ noun
Etymology: International Scientific Vocabulary crypt- + xanthin
: a red crystalline carotenoid alcohol C 40 H 55 OH that occurs in many plants (as yellow Indian corn and papaya), in blood serum, and in some animal products (as butter and egg yolk) and that is a precursor of vitamin A; 3-hydroxy-β-carotene — called also cryptoxanthol