Search Result for "devonian period":
Wordnet 3.0

NOUN (1)

1. from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites;
[syn: Devonian, Devonian period, Age of Fishes]



WordNet (r) 3.0 (2006):

Devonian period
    n 1: from 405 million to 345 million years ago; preponderance of
         fishes and appearance of amphibians and ammonites [syn:
         Devonian, Devonian period, Age of Fishes]