Dictionary entries for 'epoch'

Synonyms

ep·och (ĕṕək, ḗpŏḱ)

[Medieval Latin epocha, measure of time, from Greek epokhē, a point in time.]

noun

1. A particular period of history, especially one considered remarkable or noteworthy.
2. A notable event that marks the beginning of such a period. See synonyms at period
A unit of geologic time that is a division of a period.
Astronomy An instant in time that is arbitrarily selected as a point of reference.