trio n. (pl. trios) 三人(一組),三人演出小組;三個(gè)一套;【幾】拼三小組;【音樂】三重奏[唱];三部合奏[唱]曲;進(jìn)行曲的中央樂部;(piquet 牌戲) king, queen, jack, ace 各三張的一付牌。 the scenic trio of Shanghai 上海三景。
A string trio is a group of three string instruments or a piece written for such a group. The term is generally used with reference to works of chamber music from the Classical period to the present.