\Ron"do\, n. [It. rond[`o], fr. F. rondeau. See {Rondeau}.] 1. (Mus.) A composition, vocal or instrumental, commonly of a lively, cheerful character, in which the first strain recurs after each of the other strains. ``The Rondo-form was the earliest and most frequent definite mold for musical construction.'' --Grove. 2. (Poetry) See {Rondeau}, 1.