| 释义 |
hexakis-
Gr. ἑξάκις six times, forming an initial element in some crystallographical terms. ˌhexakisoctaˈhedron, a solid figure contained by forty-eight scalene triangles. ˌhexakistetraˈhedron, a solid figure contained by twenty-four scalene triangles, being the hemihedral form of the hexakisoctahedron.
1851Illustr. Catal. Gt. Exhib. 121 Two trapezohedrons joined together produce the hexakisoctohedron. 1878Gurney Crystallogr. 90 This form may be called indifferently the hexakisoctahedron or the octakishexahedron. 1895Story-Maskelyne Crystallogr. §187 The forty-eight scalenohedron or hexakisoctahedron occurs as a self-existent form only in the diamond. Ibid. §189 Of the hexakistetrahedron..the minerals blende and fahlore offer the prominent examples. |