1. fireline - Noun
2. fireline - Verb
A firebreak.
A row of firefighters seeking to stop spread of a forest fire.
The ranger said that working a fire is called being "on the fireline."
The line where firefighters intend to stop a spreading fire.
fireline (third-person singular simple present firelines, present participle firelining, simple past and past participle firelined)
To create a firebreak.
Firefighters continued to make excellent progress with direct fireline construction over the fire area on Sunday with the help of higher humidity, lower temperatures and the light rains which occurred intermittently throughout the burned area. Source: Internet
Getting underground fireline and hydrant permits for flow tests were on Gunsmoke Road and the new lot on John Wayne Parkway. Source: Internet
If the fire stays within the fireline today, we will probably call it contained this evening.” Source: Internet