Dictionaryac•cel•er•antPronunciation: (ak-sel'ur-unt), [key] —n. 1. something that speeds up a process. 2. Chem.accelerator (def. 5). 3. a substance that accelerates the spread of fire or makes a fire more intense: Arson was suspected when police found accelerants at the scene of the fire. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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