camelback
noun
Definitions
The backs of camels.
Example: We travelled across the desert on camelback.
A flexible water container worn on the back.
Example: An empty camelback is a blessing and a curse: it is easy to carry, but it means you have no water.
A house with a second storey that does not completely cover the ground floor.
Example: My friend lived in a camelback; we used to have fun climbing out of the window onto the roof below.
A railway locomotive that has its cab in the middle as opposed to at the end.
Example: The camelbacks were designed to help with the visibility problems inherent in putting the driver behind the entire engine.