/
ˈiːpɒk,
ˈɛpɒk/
n.
a particular period of time in history.
▸the beginning of a period in the history of someone or something.
▸Geology a division of time that is a subdivision of a period and is itself subdivided into ages, corresponding to a series.
▸Astronomy an arbitrarily fixed date relative to which planetary or stellar measurements are expressed.
Derivative
Etymology
C17 (in the L. form epocha): from mod. L. epocha, from Gk epokhē ‘stoppage, fixed point of time’, from epekhein ‘stop, take up a position’.