Meaning & use
Sustainer
Last updated
A person or thing that supports, maintains, or keeps something going over a period of time.
See it in a sentence
Rice is the primary sustainer of diets across much of Asia.
She was the emotional sustainer of the family during difficult years.
A note on using this word
In rocketry, a "sustainer engine" is the motor that maintains a spacecraft's velocity after an initial booster stage separates.
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