balalaika

noun

1. a Russian musical instrument having a triangular body and a neck like that of a guitar.

noun

1. a plucked musical instrument, usually having a triangular body and three strings: used chiefly for Russian folk music

n.

stringed instrument with a triangular body, 1788, from Russian balalaika, said to be related to balabolit’ “to chatter, babble,” an imitative word.