'firebreak' definitions:

Definition of 'firebreak'

From: WordNet
noun
A narrow field that has been cleared to check the spread of a prairie fire or forest fire [syn: firebreak, fireguard]

Definition of 'firebreak'

From: GCIDE
  • firebreak \firebreak\ n. a narrow field that has been cleared to check the spread of a prairie fire or forest fire. [WordNet 1.5]