humpback

• POS: Noun
• HYPHEN: hump=back

CIDE DICTIONARY

humpback, n. [Cf. Hunchback.].

•  A crooked back; a humped back.  Tatler.  [1913 Webster]
•  A humpbacked person; a hunchback.  [1913 Webster]
•  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.  [1913 Webster]

OXFORD DICTIONARY

humpback, n.
1 a a deformed back with a hump. b a person having this.
2 a baleen whale, Megaptera novaeangliae, with a dorsal fin forming a hump.

Idiom

humpback bridge Brit. a small bridge with a steep ascent and descent.

Derivative

humpbacked adj.