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EPA (1)
EPA (2)
EPAC
epact
epanalepsis
epanorthosis
eparch
eparchy
epaulet
épée
epeirogeny
epenthesis
epergne
epexegesis
Eph.
ephah
ephebe
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ephemeris time
e·phem·er·is time


noun 
Definition:
 
accurate system of time measurement: a system of time measurement based on the Earth's orbit around the Sun and therefore independent of the irregularities of the Earth's rotation
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