allochroous
/ˌaləˈkroʊəs/(also allochrous) rare
adjective
Changeable in colour, iridescent.
Origin
Mid 19th century; earliest use found in British Florist. From scientific Latin allochrous or its etymon ancient Greek ἀλλόχροος (contracted ἀλλόχρους) changed in colour + -ous.