Meaning of PRECAMBRIAN

Pronunciation:			pree'kambreeun
WordNet Dictionary
	Definition:		[n]  the geological era before about 544 million years ago
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	Synonyms:		Precambrian period
	See Also:		Archaeozoic, Archaeozoic era, Archean, Archean era, Archeozoic, Archeozoic era, era, geological era, Preoterozoic era, Proterozoic