a strip of plowed or cleared land made to check the spread of a prairie or forest fire.
Origin of firebreak
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for firebreak
Historical Examples of firebreak
Also: fireguard, fire line a strip of open land in a forest or on a prairie, to arrest the advance of a fire
a measure taken to arrest the advance of anything dangerous or harmful
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