- tornado
- tornadotron
- torntape monitor
- torntape relay
- torntape relay center
- torntape switching
- torntape switching center
- torntape system
- tornup
- toroid
- toroidal
- toroidal coil
- toroidal core
- toroidal graph
- toroidal memory
- toroidal memory core
- toronto
- torpedo
- torpedo batt
- torpedo detection modification
- torpedo group
- torpedoman
- torpedoplane
- torpex
- torpid
- torpidity
- torpidly
- torpify
- torpor
- torporific
- torque
- torque amplifier
- torque balance system
- torque balancer
- torque compensator
- torque differential receiver
- torque dynamometer
- torque meter
- torque motor
- torque ratio
- torque speed characteristic
- torque speed characteristic curve
- torque tube
- torquemeter
- torquer
- torr
- torrefaction
- torrefy
- torrent
- torrential