头盖帽,半球帽,半球状的东西
Calotte \Ca*lotte"\, Callot \Cal"lot\, n. [F. calotte, dim. of cale a sort of flat cap. Cf. {Caul}.] A close cap without visor or brim. Especially: (a) Such a cap, worn by English serjeants at law. (b) Such a cap, worn by the French cavalry under their helmets. (c) Such a cap, worn by the clergy of the Roman Catholic Church. {To assume the calotte}, to become a priest.