expendable
adjective
°Able to be expended; not inexhaustible.
"Oil and other expendable resources are frequently the subject of military disputes."
°Designed for a single use; not reusable.
"The anti-aircraft rocket is fired from an expendable launch platform."
noun
°An expendable person or object; usually used in the plural.
"Private Johnson was afraid the Lieutenant considered him an expendable, since he was always picked as point man."
synonyms: exhaustible, finite, limited, dispensable more» , disposable, throwaway, adjunct, redundant, superfluous, collateral, inconsiderable, sacrificable, worthless