n.
(pl. trios)
- a set or group of three.
▸(in piquet) a set of three aces, kings, queens, jacks, or tens held in one hand.
- a group of three musicians.
▸a composition written for three musicians.
▸the central section of a minuet, scherzo, or march.
Etymology
C18: from Ital., from L. tres ‘three’.