Pronunciation: (trip'ur), [key]
1. a person or thing that trips.
a. a tripping mechanism; a trip.
b. an apparatus causing a signal or other operating device to be tripped or actuated.
3. Brit. Informal.a person who goes on a pleasure trip or excursion; excursionist.
4. Slang.a person who is under the influence of a hallucinogenic drug, esp. LSD.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.