Rondel meaning : A metric form of verse using two rhymes, usually fourteen 8- to 10-syllable lines in three stanzas, with the first lines of the first stanza returning as refrain of the next two. The verse form rondeau. A rondelle, (small) circular object. A long thin medieval dagger with a circular guard and a circular pommel (hence the name). A small round tower erected at the foot of a bastion.