| epoch | (noun) a period marked by distinctive character or reckoned from a fixed point or event | Synonyms: era |
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| (noun) a unit of geological time that is a subdivision of a period and is itself divided into ages | - |
| (noun) (astronomy) an arbitrarily fixed date that is the point in time relative to which information (as coordinates of a celestial body) is recorded | Synonyms: date of reference |
| eponym | (noun) the name derived from a person (real or imaginary) | - |
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| (noun) the person for whom something is named | - |
| eponymy | (noun) the derivation of a general name from that of a famous person | - |
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| epos | (noun) a long narrative poem telling of a hero's deeds | Synonyms: epic, epic poem, heroic poem |
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| (noun) a body of poetry that conveys the traditions of a society by treating some epic theme | - |
| epoxy | (noun) a thermosetting resin; used chiefly in strong adhesives and coatings and laminates | Synonyms: epoxy glue, epoxy resin |
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