Search Result for "age_of_mammals":
Wordnet 3.0

NOUN (1)

1. approximately the last 63 million years;
[syn: Cenozoic, Cenozoic era, Age of Mammals]


The Collaborative International Dictionary of English v.0.48:

Mammal \Mam"mal\, n.; pl. Mammals. [L. mammalis belonging to the breast, fr. mamma the breast or pap: cf. F. mammal.] (Zool.) One of the Mammalia. [1913 Webster] Age of mammals. See under Age, n., 8. [1913 Webster]
WordNet (r) 3.0 (2006):

Age of Mammals n 1: approximately the last 63 million years [syn: Cenozoic, Cenozoic era, Age of Mammals]