Noun
heterochromia (countable and uncountable, plural heterochromias)
(medicine, ophthalmology) An anatomical condition in which multiple pigmentations or colorings occur in the eyes, skin or hair.
In complete heterochromia, one iris is a different color from the other. Source: Internet
Pepper’s not classed by the game as a rare cat but its apparent heterochromia marks it out as a feline of distinction. Source: Internet
Likewise, Lilith's new design for received Heterochromia, or having eyes with different colors. Source: Internet