TDT

TDT is an abbreviation for:

• terminal deoxyribonucleotidyl transferase (TdT), an enzyme
• Terrestrial Dynamical Time , an earlier term for terrestrial time (English Terrestrial Time ), an astronomical time system
• Topic Detection and Tracking , see topics discovery and tracking
• Tour de Timor (TdT), a mountain bike race in East Timor

This is a disambiguation page for differentiating between several terms identified with the same word.