Search Result for "prehistory": 
Wordnet 3.0

NOUN (1)

1. the time during the development of human culture before the appearance of the written word;
[syn: prehistory, prehistoric culture]



WordNet (r) 3.0 (2006):

prehistory
    n 1: the time during the development of human culture before the
         appearance of the written word [syn: prehistory,
         prehistoric culture]