Search Result for "ephemeris_time":
Wordnet 3.0

NOUN (1)

1. (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;
[syn: terrestrial time, TT, terrestrial dynamical time, TDT, ephemeris time]



WordNet (r) 3.0 (2006):

ephemeris time
    n 1: (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 [syn:
         terrestrial time, TT, terrestrial dynamical time,
         TDT, ephemeris time]