uk/ˌkəʊt əv ˈɑːmz/us/ˌkoʊt əv ˈɑːmz/pluralcoats of arms
a special shield or shield-shaped pattern that is the sign of a family, university, or city
coat of armsnoun[C]
ukuspluralcoats of arms
a design, usually in the shape of a shield(= with straight sides and a rounded or pointed lower edge) which is the symbol of a family, university, city, or company:
His gold signet ring bears a star, taken from his family's coat of arms.