from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Able to be removed from its mount; designed to be dismantled; detachable; portable.
- adj. (dated) Designed to be removed from the read mechanism.
from the GNU version of the Collaborative International Dictionary of English
- Capable of being dismounted; -- said of a form of rim, for an automobile wheel, which can be removed with its tire from the wheel.
demount + -able (Wiktionary)