黄おう変へん症しょう

noun

xanthochromism; xanthochroism; xanthism

A biological term for abnormal yellow pigmentation in animals, especially in species that are normally differently colored. Used in zoology and veterinary contexts.

• このカエルの黄おう変へん症しょうは遺い伝でん子しの突とつ然ぜん変へん異いによるものだ。

  The xanthochromism of this frog is due to a genetic mutation.