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1. A highly flammable substance used to start a fire intentionally.
2. Chemistry A substance that speeds up a chemical reaction, especially by catalysis.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) chem another name for accelerator3
[C20: from Latin from accelerāns, present participle of accelerāre to go faster]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ækˈsɛl ər ənt)

1. something that speeds up a process.
3. a substance that intensifies a fire or accelerates its spread.
[1915–20; < Latin]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Ambulance bosses warned of the dangers of using accelerants on barbecues.
Barbara Rouse, from the friends of Derby Park, appealed to parents whose children might have come home smelling of smoke or accelerants.
"They are the hardest for us to figure out, because sometimes they use accelerants, sometimes they don't, and there's no pattern."
Committee chairman Linda Groom claims the dancers have made the hall's floor too slippery by using accelerants to help dancers glide across the floor.
He is ''imprinted'' on 17 of the most common accelerants used in arsons -- among them gas, diesel, kerosene, lighter fluid, Coleman fuel, mineral spirits, acetone, and lacquer thinner.
The springer spaniel can sniff out accelerants and uncover deliberate fire-raising.
An inquest into her death, held in Leamington, was told that accelerants had been used to start the fire.
A Kirklees police spokesman said: "The front passenger window of the car was smashed and accelerants poured inside before the vehicle was set on fire.
Judge can detect more than 60 different fire accelerants in minutes and "has helped fire marshals numerous times uncover items they wouldn't have found by any other means," Laubach said.
It needs to accelerate the speed of performance on an ongoing basis, much like the many accelerants used in various chemical processes.
The 58-page book covers real-time analysis of pharmaceuticals, drugs in dose form or in bodily fluids, synthetic organic or organometallic compounds, inks on paper, explosives and arson accelerants, chemical weapons agents, foods and more.
He has been trained to sniff out the cause of suspicious blazes and can detect up to 10 different accelerants such as petrol, diesel and white spirit, which may have been used to start a fire.