sustainer

IPA: sʌstˈeɪnɝ

A person or thing that sustains.
(aeronautics) A rocket engine that remains with a spacecraft during its ascent after the separation of the booster engines.
(US) A person who makes regular donations, especially to a public radio or television station.
(US, obsolete) A radio program without a commercial sponsor.

Examples of "sustainer" in Sentences

Woman as life-giver, nurturer, life-sustainer is obscene.
And in the Vedas, Prithivim Dharmanaa Dhritam, signifies dharma as sustainer.
Owned media, deployed so it is easily shared and commented on, is the sole reliable sustainer of earned media.
Similarly, SpaceX is doing wonders in a hurry, but it is technology from at least 40 years ago (think Atlas sustainer).
Manuel also holds the position of a food bank sustainer, meaning that he automatically donates money to the bank each month from his bank account.
I'm saying that all the empirical evidence we have supports and reinforces the (already sound) metaphysical position that being only comes from being, that act is before potency, and that God is the source and sustainer of all that is.
Aside from stints volunteering at the Oregon Food Bank, which he calls "one of the absolute best," Manuel also holds the position of a food bank sustainer, meaning that he automatically donates money to the bank each month from his bank account.