Pronunciation: (ron'dō, ron-dō'), [key]
—pl. -dos. Music.
a work or movement, often the last movement of a sonata, having one principal subject that is stated at least three times in the same key and to which return is made after the introduction of each subordinate theme.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.