English dictionary
tdt meaning and definition
Definition and meaning of tdt at MeaningMonkey.org. tdt meaning and definition in the English Dictionary.TDT noun
Definition of TDT (noun)
- (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
- synonyms: ephemeris time, terrestrial dynamical time, terrestrial time, TT
Source: Princeton University Wordnet