Pronunciation: (gu-ril'u), [key]
a member of a band of irregular soldiers that uses guerrilla warfare, harassing the enemy by surprise raids, sabotaging communication and supply lines, etc.
pertaining to such fighters or their technique of warfare: guerrilla strongholds; guerrilla tactics. Also,guerilla.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.