penetration aid
noun Military.
a device or tactic, as the use of chaff or decoys or the maintaining of a low flight level, that helps an aircraft or missile to enter hostile air space.
Origin of penetration aid
First recorded in 1965–70
Words nearby penetration aid
penetrant gene,
penetrate,
penetrating,
penetrating wound,
penetration,
penetration aid,
penetrative,
penetrometer,
peneus,
penfield,
peng dehuai