英语词源字典 - 在线词源网站

cryptoxanthin [cryptoxanthin 词源字典]: "A yellow carotenoid pigment which is a metabolic precursor of vitamin A and is commonly found in plants and in other sources such as egg yolk", 1930s; earliest use found in Chemical Abstracts. From crypto- + xanthin, after German Kryptoxanthin.[cryptoxanthin etymology, cryptoxanthin origin, 英语词源]
phylloxanthin: "= xanthophyll", Mid 19th cent.; earliest use found in Robert Mayne (1808–1868).
xanthine: "A crystalline compound found in blood and urine which is an intermediate in the metabolic breakdown of nucleic acids to uric acid", Mid 19th century: from xanthic + -ine⁴.