RhymeZone: camelback definitions

Definitions of camelback:

noun: (uncountable) The backs of camels.
noun: (countable) A flexible water container worn on the back.
noun: (countable) A house with a second storey that does not completely cover the ground floor.
noun: (countable, rail transport) A railway locomotive that has its cab in the middle as opposed to at the end.
noun: (countable) A camelback sofa or chair.
noun: (uncountable) A type of rubber used in tyre restoration.

(Definitions from Wiktionary)