A circular or quasi-circular disc placed upon a flag. The roundel is sometimes used to provide an appropriate background for a flag BADGE. Sometimes, as on the ROYAL CANADIAN AIR FORCE ENSIGN, the badge itself is in the form of a roundel.
Roundel is a monthly periodical that serves as the newsletter of the BMW Car Club of America. Their mission is to inform, entertain, and promote a sense of community for their 75,000 members. They review new cars as well as perform comparison tests.