Definition of trios:
(n) :
A group of three people or things.
(n) :
A group of three musicians.
(n) :
(music) A piece of music written for three musicians.
(n) :
(music) A passage in the middle of a minuet, frequently in a different key.
(n) :
Any cocktail made with a spirit, a liqueur, and a creamy ingredient.
(n) :
Synonym of three-in-one (“type of fast food”).