Dictionary and Thesaurus

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 of Tdt

• Terrestrial Time
• TT
• Terrestrial Dynamical Time
• TDT
• Ephemeris Time

Antonyms of Tdt

Homophones of Tdt