thro - top
- throat
- throat depth
- throat of a fillet weld
- throaty
- throttle
- throttle arm
- throttle body
- throttle body fuel injection
- throttle body injection
- throttle butterfly
- throttle enrichment
- throttle gauge
- throttle pedal
- throttle position sensor
- throttle relaxer
- throttle return spring
- throttle shaft
- throttle solenoid
- throttle spindle
- throttle stop solenoid
