Tripwire Definition

trĭpwīr
trip wire
noun
A wire stretched near ground level to trip or ensnare an enemy.
American Heritage
A hidden wire that will set off a trap, snare, etc. when tripped on.
Webster's New World
A small military force whose involvement in hostilities will trigger the use of a larger force.
American Heritage

Any means of detecting intruders.

Wiktionary

Other Word Forms of Tripwire

Noun

Singular:
tripwire
Plural:
tripwires

Origin of Tripwire

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