Dictionary![]() ![]() main•te•nancePronunciation: (mān'tu-nuns), [key] —n. 1. the act of maintaining. 2. the state of being maintained: the maintenance of friendly relations with England. 3. care or upkeep, as of machinery or property: With proper maintenance the car will last for many years. 4. means of upkeep, support, or subsistence; livelihood: to provide a comfortable maintenance. 5. alimony or child support. 6. Law.an officious meddling in a suit in which the meddler has no interest, by assisting either party with means to prosecute or defend it. —adj. Pharm., Psychiatry.administered to sustain a desired physiological or mental condition: maintenance dose. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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