柯林斯词典tiara /tɪˈɑːrə/ (tiaras) 1. N-COUNT A tiara is a metal band shaped like half a circle and decorated with jewels that girls or women wear on their heads. (女式)冕状头饰 返回 tiara剑桥词典a piece of metal in the shape of half a circle decorated with jewels (= precious stones ) that is worn on the head by a woman, especially a queen , etc., at very formal social occasions （尤指女王等地位高的女性在非常正式的场合佩戴的）冕状宝石头饰 返回 tiara