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.
The xanthochromism of this frog is due to a genetic mutation.
From 黄 (yellow) + 変 (change) + 症 (condition/symptom). A modern medical/biological compound, likely coined in Japanese from Sino-Japanese elements.