al·bi·no [al b?n?] (plural al·bi·nos) noun 1. person or animal lacking pigmentation: a person or animal whose skin and hair lack pigmentation and whose irises are pink because of a hereditary condition albinism 2. plant lacking coloration: a plant that lacks pigmentation in its coloration because of a hereditary condition albinism [Early 18th century. < Portuguese < Latin albus "white"]