expendable
/ɪkˈspɛndəbəl/ adjective C1- 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.
- Not essential or mandatory in order to achieve a goal. · The research department was deemed expendable, and its funding was not renewed.
- Regarded as not worth preserving or saving; able to be sacrificed. · In the internecine rivalries of large corporations, whole departments may become expendable in the execution of one executive's power play.
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