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sustainer
[ suh-stey-ner ]
/ səˈsteɪ nər /
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noun
a person or thing that sustains.
Rocketry.
- any stage of a multistage rocket or guided missile that sustains flight after the burnout of the booster.
- the rocket engine or cluster of engines contained in such a stage.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use sustainer in a sentence
British Dictionary definitions for sustainer
sustainer
/ (səˈsteɪnə) /
noun
a rocket engine that maintains the velocity of a space vehicle after the booster has been jettisoned
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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