The meaning of Rondel and additional information.

Rondel(n.) A small round tower erected at the foot of a bastion.

Rondel(n.) Same as Rondeau.

Rondel(n.) Specifically, a particular form of rondeau containing fourteen lines in two rhymes, the refrain being a repetition of the first and second lines as the seventh and eighth, and again as the thirteenth and fourteenth.