- trimming moment
- trimming vegetables for cooking
- trimodal
- trimolecular model
- trimolecular reaction
- trimorphic
- trimorphic number
- trimorphism
- trimorphous
- TRIMs
- trimuon
- trimyristin
- trinary form
- Trincomalee
- Trinculo
- trinexapac-ethyl
- Tringits
- trinicon
- Trinidad and the Valley de los Ingenios
- Trinidad and Tobago
- Trinidad-and-Tobagoans
- Trinidad and Tobago Express
- Trinidad Island
- triniscope
- trinitrobenzamine poisoning