| eocene | (n) from 58 million to 40 million years ago; presence of modern mammals, Syn. Eocene epoch |
| eohippus | (n) earliest horse; extinct primitive dog-sized four-toed Eocene animal, Syn. dawn horse |
| eolith | (n) a crude stone artifact (as a chipped flint); possibly the earliest tools |
| eolithic | (adj) of or relating to the earliest period of the Stone Age (characterized by the use of eoliths) |
| eolithic age | (n) the earliest part of the Stone Age marked by the earliest signs of human culture, Syn. Eolithic |
| eon | (n) the longest division of geological time, Syn. aeon |
| eon | (n) an immeasurably long period of time, Syn. aeon, Example: oh, that happened eons ago |
| eon | (n) (Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe, Syn. aeon |
| eonian | (adj) of or relating to a geological eon (longer than an era), Syn. aeonian |
| eoraptor | (n) a theropod dinosaur of the genus Eoraptor |
| Eocene | a. [ Gr. |
| eohippus | n. [ Gr. |
| Eolian | a. [ See Æolian. ]
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| Eolic | a. & n. See æolic. [ 1913 Webster ] |
| Eolipile | n. [ Cf. F. éolipyle. ] Same as æolipile. [ 1913 Webster ] |
| Eolis | n. [ L. Aeolis a daughter of Æolus, Gr. |
| Eophyte | n. [ Gr. |
| Eophytic | a. Of or pertaining to eophytes. [ 1913 Webster ] |
| Eos | ‖n. [ L., fr. Gr. |
| Eosaurus | ‖n. [ NL., fr. Gr. |
| Eozän { n } [ geol. ] | Eocene [Add to Longdo] |