terrestrial time

Thesaurus

Noun

1.

terrestrial time - (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 motionsephemeris time, TDT, terrestrial dynamical time, TTastronomy, uranology - the branch of physics that studies celestial bodies and the universe as a wholetime unit, unit of time - a unit for measuring time periods