Search Result for "carboniferous period":
Wordnet 3.0

NOUN (1)

1. from 345 million to 280 million years ago;
[syn: Carboniferous, Carboniferous period]



WordNet (r) 3.0 (2006):

Carboniferous period
    n 1: from 345 million to 280 million years ago [syn:
         Carboniferous, Carboniferous period]