Meaning of ROCK OF GIBRALTAR

WordNet Dictionary
	Definition:		[n]  colony of the United Kingdom located on a limestone promontory at the southern tip of Spain; strategically important because it can control the entrance of ships into the Mediterranean; one of the Pillars of Hercules
	Synonyms:		Calpe, Gibraltar
	See Also:		colony, Europe, foreland, Gibraltarian, headland, Pillars of Hercules, promontory, settlement