拟球 Traditional form: 擬球 Pinyin (reading): nǐqiú Definitions: (math.) pseudosphere, a surface in ordinary space of constant negative curvature Characters: 拟 - to draft, to plan; to intend 球 - ball, globe, sphere; round Traditional characters: 擬 - to draft, to plan; to intend 球 - ball, globe, sphere; round