ringtail noun 11forms 1 noun11 •A ring-tailed animal. •Any of the two extant small nocturnal mammals in the genus Bassariscus, somewhat like raccoons, native to the southwestern United States and Central America. •A North American ringtail, Bassariscus astutus •A cacomistle, Bassariscus sumichrasti •A capuchin monkey (Cebus spp.) •A ring-tailed lemur (Lemur catta) •A raccoon (Procyon spp, especially Procyon lotor) •A ringtail possum (family Pseudocheiridae) •Any of various damselflies of the genus Austrolestes, of Australia, New Zealand and South Pacific islands •(Australia, slang) A ring-in. •A ringsail. formsringtails