Xanthism

noun
a condition of skin, fur, or feathers in which yellow coloration predominates
historical examples

colouration in animals and plants alfred tylor

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Xantho-
a combining form meaning “yellow,” used in the formation of compound words: xanthophyll. combining form indicating yellow: xanthophyll
Xanthochroid
adjective (rare) of, relating to, or designating races having light-coloured hair and a pale complexion
Xanthochroism
noun a condition in certain animals, esp aquarium goldfish, in which all skin pigments other than yellow and orange disappear