ad·en·oidsBrE/ˈædənɔɪdz/NAmE/ˈædənɔɪdz/noun[pl.]piecesofsofttissue at the back of the nose and throat, that are part of the body's immune systemandthatcanswellupandcausebreathingdifficulties, especiallyinchildren腺样体,增殖体(尤指小儿的咽扁桃体)▸ad·en·oid·alBrE/ˌædəˈnɔɪdl/NAmE/ˌædəˈnɔɪdl/adjective