• Webster's Revised Unabridged Dictionary
    • n Orang-utan (Zoöl) An arboreal anthropoid ape (Pongo pygmaeus, formerly Simia satyrus), which inhabits Borneo and Sumatra. Often called simply orang. It is now an endangered species.☞ It is over four feet high, when full grown, and has very long arms, which reach nearly or quite to the ground when the body is erect. Its color is reddish brown. In structure, it closely resembles man in many respects.
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Century Dictionary and Cyclopedia
    • n orang-utan An anthropoid ape of the family Simiidæ; the mias, Simia satyrus. It inhabits wooded lowlands of Borneo and Sumatra. The male attains a stature of 4 feet or a trifle more, with a reach of the arms of above 7½ feet. The relative proportions of the arms and legs are thus very different from those of man, in whom the height and the reach of the arms are nearly the same. The arms of the orang-utan reach nearly to the ground when the animal stands erect. This attitude is difficult and constrained, and is not ordinarily assumed. The animal is most at home in trees, where it displays extraordinary agility. In walking on level ground it stoops forward, brings the hands to the ground, and swings the body by the long arms, much as a lame person uses crutches. Both hands and feet are long and narrow, with bent knuckles and short thumbs and toes, so that the palms and soles cannot be pressed flat upon plane surfaces. The face, hands, and feet are naked, and the fur is scanty or thin, though rather long; it is of a brownish-red or auburn color. Orang-utans live in trees, where they build large nests and feed on fruits and succulent buds or shoots. The strength of the animal is great in proportion to its size, and when brought to bay it proves a formidable antagonist. Also orang.
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Webster's Revised Unabridged Dictionary
Malayan ōrang ūtan, i. e., man of the woods; ōrang, man + ūtan, a forest, wood, wild, savage


In literature:

But above all I had come across a great many "orang-utan" (Malay for "jungle-man") and had been able to study their habits.
"Wanderings Among South Sea Savages And in Borneo and the Philippines" by H. Wilfrid Walker
The small sort of Orang-Utan, viz.
"Evidence as to Man's Place in Nature" by Thomas H. Huxley
The small sort of Orang-Utan, viz.
"Lectures and Essays" by T.H. Huxley
Moll remarks that he received information regarding such a phenomenon in the orang-utan.
"Studies in the Psychology of Sex, Volume 1 (of 6)" by Havelock Ellis
THE MALAY ARCHIPELAGO: the Land of the Orang Utan and the Bird of Paradise.
"MacMillan & Co.'s General Catalogue of Works in the Departments of History, Biography, Travels, and Belles Lettres, December, 1869" by Unknown
Among the nine adult male Orang-utans, collected by myself in Borneo, the skulls differed remarkably in size and proportions.
"Darwinism (1889)" by Alfred Russel Wallace
The monkey was a tame orang-utan, youthful but large.
"Blown to Bits" by Robert Michael Ballantyne
Orang-utan, the, xii, 382.
"Little Journeys to the Homes of the Great - Volume 14" by Elbert Hubbard
Young orang-utans likewise chuckle and grin when tickled, and, as Wallace observes, give expression to unmistakable smiles.
"The Dawn of Reason" by James Weir
The monkey was a tame orang-utan, youthful but large.
"Blown to Bits" by R.M. Ballantyne

In news:

In the Malay language, "orang" means "person" and "utan" is derived from "hutan," which means "forest.
In Sumatra and Borneo, palm-oil expansion threatens elephants, tigers and rhinos, as well as orang-utans.
Orang Utan Kalimantan (Pongo P. Pygmaeus) drinking and playing with water at Surabaya Zoo in East Java, Indonesia.
How an orang-utan and stray dog became best friends.
Orang Utan versus Orang Tua.
Having lived on the island of Borneo for a year, I have had the opportunity to see Orang Utans in the wild.
Orang Utan Kalimantan (Pongo P. Pygmaeus) drinking and playing with water at Surabaya Zoo in East Java, Indonesia.