Dictionary
ac•cel•er•ant
Pronunciation: (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.