- something that speeds up a process.
- Chemistry. accelerator(def 5).
- 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.
Origin of accelerant
1915–20; < Latin accelerant- (stem of accelerāns) hastening (present participle of accelerāre). See accelerate
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for accelerant
Thrown into the Middle East pyre, the Zionism-racism charge has been an accelerant, angering, alienating, polarizing both sides.Delegitimizing Israel Makes Peace Harder to Achieve
February 28, 2013
Also in the apartment were glass jars containing what is believed to be accelerant, black gunpowder, and bullets.How Alleged Colorado Shooter James Holmes Bought His Guns
Christine Pelisek, Eliza Shapiro
July 21, 2012
- chem another name for accelerator (def. 3)
C20: from Latin from accelerāns, present participle of accelerāre to go faster
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for accelerant
1854, from Latin accelerantem (nominative accelerans), present participle of accelerare (see accelerate). As an adjective from 1890.
Online Etymology Dictionary, © 2010 Douglas Harper
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A substance, such as a petroleum distillate, that is used as a catalyst, as in spreading an intentionally set fire.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.