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An animal resembling a rhinoceros; specifically a mammal of the superfamily Rhinocerotoidea, which comprises the rhinoceroses and related extinct forms.
Of or relating to the superfamily Rhinocerotoidea.
Mid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From classical Latin rhīnocerōt-, rhīnocerōs rhinoceros + -oid.