Definition of patrol. (Entry 1 of 2) 1 a : the action of traversing a district or beat or of going the rounds along a chain of guards for observation or the maintenance of security. b : the person performing such an action. c : a unit of persons or vehicles employed for reconnaissance, security, or combat. 2 : a subdivision of a Boy Scout troop or Girl Scout troop.

noun. a person or group of persons assigned to patrol an area, road, etc. an automobile, ship, plane, squadron, fleet, etc., assigned to patrol an area. Military. a detachment of two or more persons, often a squad or platoon, detailed for reconnaissance or combat. the act of patrolling.

Patrolling is a military tactic. Small groups or individual units are deployed from a larger formation to achieve a specific objective and then return. The tactic of patrolling may apply to ground troops, armored units, naval units, and combat aircraft. The duration of a patrol can vary from a few hours to several weeks depending on the nature of the objective and the type of units …

1. the action of going through or around a town, neighbourhood, etc, at regular intervals for purposes of security or observation. 2. a person or group that carries out such an action. 3. a military detachment with the mission of security, gathering information, or …