sustainer

nounB2

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noun

Plural noun:

sustainers

1.
A person or thing that sustains.
1724, Aaron Hill and William Bond, The Plain Dealer, No. 36, 24 July, 1724, London: S. Richardson & A. Wilde, p. 296, […] not One in Fifty, of our Men of Fashion, or of Quality, as they call themselves, has an Understanding that is able to go alone. They are forc’d, therefore, to wait ’till they have their Sustainer’s Opinion to lean against, before they dare venture upon the Praise, even of what they are inclinable to think favourably of […]
2.
(aeronautics) A rocket engine that remains with a spacecraft during its ascent after the separation of the booster engines.
3.
(US)A person who makes regular donations, especially to a public radio or television station.
4.
(US, obsolete)A radio program without a commercial sponsor.

cosustainer

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