HyperDic: terrestrial_dynamical_time

English > 1 sense of the expression terrestrial dynamical time:
NOUNtimeterrestrial dynamical time, terrestrial time, TT, TDT, ephemeris time(astronomy) a measure of time defined by Earth's orbital motion
English > terrestrial dynamical time: 1 sense > noun 1, time
Meaning(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.
Synonymsterrestrial time, TT, TDT, ephemeris time
Categoryastronomy, uranologyThe branch of physics that studies celestial bodies and the universe as a whole
Broadertime unit, unit of timeA unit for measuring time periods
Catalantemps d'efemèrides, temps terrestre

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