sustainer.
A person or thing that sustains.
Meaning & usage
A person or thing that sustains.
A rocket engine that remains with a spacecraft during its ascent after the separation of the booster engines.
A person who makes regular donations, especially to a public radio or television station.
A radio program without a commercial sponsor.
Where this word comes from
From sustain + -er.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.