Definitions of Eocene [ˈi əˌsin]

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Definition of 'Eocene'

Random House Webster's College Dictionary

1. (adj.) Eocene
noting or pertaining to an epoch of the Tertiary Period, occurring from 55 million to 40 million years ago, characterized by the advent of the modern mammalian orders.

2. (n.) Eocene
the Eocene Epoch or Series.

Etymology: (1831; eo-+-cene)

Definition of 'Eocene'

Princeton's WordNet

1. (noun) Eocene, Eocene epoch
from 58 million to 40 million years ago; presence of modern mammals

Definition of 'Eocene'

Webster Dictionary

1. (adj) Eocene
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

2. (noun) Eocene
the Eocene formation

'Eocene' - Nearby Entries
e. o. lawrence enzymologist enzymology eocene eocene epoch eohippus eolian

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