a person or thing that trips; specif.,
- a mechanical part for tripping a cam, pawl, etc.; also, a tripping device that operates a signal on a railroad
- Chiefly Brit. a person who takes a trip; tourist
- Slang One who is undergoing a hallucinatory experience induced by a psychedelic drug.
- A tripping or triggering device on a mechanism.
- Chiefly British One who is taking a short pleasure trip.