TDT

Pronunciation (US):

(GB):

 Dictionary entry overview: What does TDT mean? 

• TDT (noun)
  The noun TDT has 1 sense:

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

  Familiarity information: TDT used as a noun is very rare.

 Dictionary entry details 

• TDT (noun)

Sense 1

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

Classified under:

Nouns denoting time and temporal relations

Synonyms:

ephemeris time; TDT; terrestrial dynamical time; terrestrial time; TT

Hypernyms ("TDT" is a kind of...):

time unit; unit of time (a unit for measuring time periods)

Domain category:

astronomy; uranology (the branch of physics that studies celestial bodies and the universe as a whole)