龙凤胎 Traditional form: 龍鳳胎 Pinyin (reading): lóngfèngtāi Definitions: twins of mixed sex Characters: 龙 - dragon; symbol of the emperor 凤 - male phoenix; symbol of joy 胎 - embryo, fetus; car tire Traditional characters: 龍 - dragon; symbol of the emperor 鳳 - male phoenix; symbol of joy 胎 - embryo, fetus; car tire