Humpback

Hump´back`

n.	1.	A crooked back; a humped back.
	2.	A humpbacked person; a hunchback.
	3.	(Zool.) 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 Megaptera osphyia of America; that of the California coasts is Megaptera versabilis.

Noun	1.	humpback - an abnormal backward curve to the vertebral column Synonyms: hunchback, kyphosis
	2.	humpback - a person whose back is hunched because of abnormal curvature of the upper spine Synonyms: crookback, hunchback
	3.	humpback - large whalebone whale with long flippers noted for arching or humping its back as it dives Synonyms: humpback whale, Megaptera novaeangliae