medallion

/məˈdæl·jən/ n [C]

Definition

› a metal disk worn as a decoration on a chain around the neck or attached to a vehicle to show that it can be legally used for a special purpose: He drove a medallion taxi while he attended college at night. › A medallion is also a round piece of meat: medallions of lamb/veal

(Definition of medallion n from the Cambridge Academic Content Dictionary © Cambridge University Press)