Answer | Crossword Clue |
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xanthopterin | a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals also XANTHOPTERINE |
xanthopterins | XANTHOPTERIN, a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals also XANTHOPTERINE |
xanthopterines | XANTHOPTERINE, a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals also XANTHOPTERIN |
xanthopterine | a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals also XANTHOPTERIN |