Transcription factors database, a database indexing transcription factors.

2,4-Dichlorophenoxyacetic acid, an herbicide used to control weeds.

TheFreeDictionary.com, an online dictionary.

The Fully Down, a rock/punk-influenced band from Ottawa, Ontario, Canada.

Thermo field dynamics, a topic within thermal quantum field theory.

toothpaste for dinner, a webcomic.

Command & Conquer: The First Decade, a compilation of Command & Conquer games.

Total Fucking Darkness - a demo by heavy metal band, Cradle of Filth.