from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Subject to use or consumption: an expendable source.
- adj. Not worth salvaging or reusing: expendable rocket boosters.
- adj. Not strictly necessary; dispensable: an expendable budget item; expendable personnel.
- adj. Open to sacrifice in the interests of gaining an objective, especially a military one: expendable civilian targets.
- n. Something expendable.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Able to be expended; not inexhaustible.
- adj. Designed for a single use; not reusable.
- adj. Not essential or mandatory in order to achieve a goal.
- adj. That which is regarded as not worth preserving or saving; able to be sacrificed.
- n. An expendable person or object; usually used in the plural.
from The Century Dictionary and Cyclopedia
- That can be expended or consumed by use: as, articles expendable and not expendable.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. suitable to be expended
- adj. (used of funds) remaining after taxes
From Latin expendere + -able (Wiktionary)