| Answer | Crossword Clue |
|---|---|
| xanthopterin | a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals also XANTHOPTERINE |
| Answer | Crossword Clue |
|---|---|
| xanthopterin | a yellow pigment obtainable from the wings of yellow butterflies and the urine of mammals also XANTHOPTERINE |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.