Definition of: trio

(trē′ō, for def. 1 also trī′ō) noun plural tri·os
1. Any three things grouped or associated together.
2. Music a A composition for three performers. b The second part of a minuet or scherzo, of a march, and of dance forms generally. c A group of three musicians who render trios. [<F <Ital. <tre three <L tres, tria]