ephemeris
- n an annual publication containing astronomical tables that give the positions of the celestial bodies throughout the year
ephemeris time
- n (astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions
ephemeron
- n anything short-lived, as an insect that lives only for a day in its winged form
ephesians
- n a New Testament book containing the epistle from Saint Paul to the Ephesians which explains the divine plan for the world and the consummation of this in Christ
- n a resident of the ancient Greek city of Ephesus