The Collaborative International Dictionary of English v.0.48:
chimp \chimp\ n. same as chimpanzee. Syn: chimpanzee, Pan troglodytes. [WordNet 1.5]WordNet (r) 3.0 (2006):
chimp n 1: intelligent somewhat arboreal ape of equatorial African forests [syn: chimpanzee, chimp, Pan troglodytes]