| Pronunciation: | | 'eeu`seen
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 WordNet Dictionary |
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| | Definition: | |
[n] from 40 million to 58 million years ago; presence of modern mammals |
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EOCENE is a 6 letter word that starts with E. |
| | Synonyms: | | Eocene epoch |
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| | See Also: | | epoch, Tertiary, Tertiary period |
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| Webster's 1913 Dictionary |
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| | Definition: | | \E"o*cene\, a. [Gr. ? daybreak, dawn + ? new, recent.]
(Geol.)
Pertaining to the first in time of the three subdivisions
into which the Tertiary formation is divided by geologists,
and alluding to the approximation in its life to that of the
present era; as, Eocene deposits. -- n. The Eocene formation.
--Lyell.
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