The Collaborative International Dictionary
Rhinoceros \Rhi*noc"e*ros\ (r[-i]*n[o^]s"[-e]*r[o^]s), n. [L., fr. Gr. "rinoke`rws, "rinoke`rwtos; "ri`s, "rino`s, the nose + ke`ras a horn: cf. F. rhinoc['e]ros. See Horn.] (Zo["o]l.) Any pachyderm belonging to the genera Rhinoceros, Atelodus, and several allied genera of the family Rhinocerotid[ae], of which several living, and many extinct, species are known. They are large and powerful, and usually have either one or two stout conical median horns on the snout. Note: The Indian, or white, and the Javan rhinoceroses ( Rhinoceros Indicus and Rhinoceros Sondaicus) have incisor and canine teeth, but only one horn, and the very thick skin forms shieldlike folds. The two or three African species belong to Atelodus, and have two horns, but lack the dermal folds, and the incisor and canine teeth. The two Malay, or East Indian, two-horned species belong to Ceratohinus, in which incisor and canine teeth are present. See Borele, and Keitloa. Rhinoceros auk (Zo["o]l.), an auk of the North Pacific ( Cerorhina monocrata) which has a deciduous horn on top of the bill. Rhinoceros beetle (Zo["o]l.), a very large beetle of the genus Dynastes, having a horn on the head. Rhinoceros bird. (Zo["o]l.)
A large hornbill ( Buceros rhinoceros), native of the East Indies. It has a large hollow hornlike process on the bill. Called also rhinoceros hornbill. See Hornbill.
An African beefeater ( Buphaga Africana). It alights on the back of the rhinoceros in search of parasitic insects.
Wikipedia
The rhinoceros hornbill (Buceros rhinoceros) is one of the largest hornbills, adults being approximately the size of a swan, long and weighing . In captivity it can live for up to 90 years. It is found in lowland and montane, tropical and subtropical climates and in mountain rain forests up to 1,400 metres altitude in Borneo, Sumatra, Java, the Malay Peninsula, Singapore, and southern Thailand.
The rhinoceros hornbill is the state bird of the Malaysian state of Sarawak and the country's National Bird. Some Dayak people, especially the Ibanic groups, believe it to be the chief of worldly birds or the supreme worldly bird, and its statue is used to welcome the god of the augural birds, Sengalang Burong, to the feasts and celebrations of humankind. Contrary to some misunderstandings, the rhinoceros hornbill does not represent their war god, Sengalang Burong, who is represented in this world by the brahminy kite.