A commemorative medal is a special type of medal that is given or made to remember and honor a specific event, person, or achievement. It is created as a way to celebrate and remember something important. Full definition
1974 Delta State University 50th Anniversary Commemorative Medal Design Competition, (First Prize Award) (roberthenrycontemporary.com)
Each Japan Prize category carries a cash award of $ 550,000, which laureates will receive along with commemorative medals at a ceremony here in April. (sciencemag.org)
Retailing for # 49.99 on Amazon (currently the only retailer I could find that are selling it), the Moto Racer 4 Deluxe Edition includes a nice looking steelbook with custom artwork, plus an obligatory season pass for all upcoming content, a 20th anniversary commemorative medal and exclusive DLC including an extra rider and motorcycle, two horns and one sticker. (teamvvv.com)