spheroconicWiktionary 原文英美构词拆解spherosphero-前缀conicconic词干sphero-sphere; spherical词源说明From sphero- + conic.释义名词noun1(geometry) A non-plane curve formed by the intersection of the surface of an oblique cone with the surface of a sphere centred at the cone's vertex.形容词adjective1(malacology, of a shell or fossil) Having a coiled shell approaching a sphere in shape.