[ 'raʊnd(ə)l ]
■ noun
1》 a small disc, especially a decorative medallion.
↘a circular identifying mark painted on military aircraft.
2》 a variation of the rondeau (poem), consisting of three stanzas of three lines each, rhyming alternately, with the opening words repeated as a refrain after the first and third stanzas.
Origin
ME: from OFr. rondel , from ro(u)nd- (see round ).