Ron-deau', n.

(ron-dō'), n. [Fr. rondeau, from rond, round.] [Written also rondo.]

1. Something which goes round, that is, returns upon itself; hence, a species of lyric poetry so composed as to contain a refrain or repetition, which occurs according to a fixed law.
2. (Mus.) A composition, either for the voice or an instrument, in which the first strain is repeated at the end of each of the other strains.