| Humpback 1. (n.) A crooked back; a humped back. 2. (n.) A humpbacked person; a hunchback. 3. (n.) Any whale of the genus Megaptera, characterized by a hump or bunch on the back. Several species are known. The most common ones in the North Atlantic are Megaptera longimana of Europe, and M. osphyia of America; that of the California coasts is M. versabilis. 4. (n.) A small salmon (Oncorhynchus gorbuscha), of the northwest coast of America. Thesaurus Entries bowlegs, cleft palate, clubfoot, crookback, defacement, deformation, deformity, disfigurement, flatfoot, freakishness, harelip, humpback, hunchback, knock-knee, kyphosis, lordosis, malconformation, malformation, misproportion, misshape, monstrosity, mutilation, splayfoot, swayback, talipes, teratology, torticollis, truncation, valgus, wryneck |