detachable

adj

1. (not-comparable)Designed to be unfastened or disconnected without damage.

   “Pique and linen also accented several coats and oftentimes were both detachable and formed an overcollar covering a collar made from the coat fabric.”

noun

1. Any device that is designed so that it can be detached from something else.

   “For the past few months, the red HP Pavilion X2 10-n055na has been my pick of the detachables at £249.99.”