self-sustaining

adjective
self-sus·​tain·​ing | \ ˌself-sə-ˈstā-niŋ How to pronounce self-sustaining (audio) \

Definition of self-sustaining

1 : maintaining or able to maintain oneself or itself by independent effort a self-sustaining community
2 : maintaining or able to maintain itself once commenced a self-sustaining nuclear reaction

First Known Use of self-sustaining

1797, in the meaning defined at sense 1

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The first known use of self-sustaining was in 1797

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one that collects or salvages junk

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