Search Result for "precambrian": 
Wordnet 3.0

NOUN (1)

1. the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago;
[syn: Precambrian, Precambrian eon, Precambrian aeon, Precambrian period]



WordNet (r) 3.0 (2006):

Precambrian
    n 1: the eon following the Hadean time and preceding the
         Phanerozoic eon; from about 3,800 million years ago until
         544 million years ago [syn: Precambrian, Precambrian
         eon, Precambrian aeon, Precambrian period]