English dictionary



Hint: Asterisk (*) is a wildcard. Asterisk substitutes zero or more characters.

English noun: TDT

1. TDT (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 motions


Synonymsephemeris time, terrestrial dynamical time, terrestrial time, TT


Broader (hypernym)time unit, unit of time


Domain categoryastronomy, uranology









Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
2024 onlineordbog.dk