[ trahy-moh-ter ]
/ ˈtraɪˌmoʊ tər /
an airplane or other vehicle that has three motors.
Related formstri·mo·tored, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for trimotor
It was built of corrugated aluminum exactly like the Ford Trimotor.The First Airplane Diesel Engine: Packard Model DR-980 of 1928|Robert B. Meyer