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|n.||1.||(Zool.) A West African anthropoid ape allied to the gorilla and chimpanzee, and by some considered only a variety of the chimpanzee. It is noted for building large, umbrella-shaped nests in trees. Called also tscheigo, tschiego, nschego, nscheigo.|
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.