The act of moving about an area especially by an authorized and trained person or group, for purposes of observation, inspection, or security.
A person or group of persons who perform such an act.
A military unit sent out on a reconnaissance or combat mission.
One or more military vehicles, boats, ships, or aircraft assigned to guard or reconnoiter a given area.
A division of a Boy Scout troop or Girl Scout troop consisting of between six and eight children.
v.
pa·trolled, pa·trol·ling, pa·trols
v.
tr. To engage in a patrol of. v.
intr. To engage in a patrol.
[French patrouille, from patrouiller, to patrol, alteration of Old French patouiller, to paddle about in mud, patrol, probably from pate, paw; see patois.] pa·trol'ler n.
[puh-trohl] 
verb, -trolled, -trol⋅ling, noun 