trisoctahedron

前缀

词干

tris-: (chemistry, obsolete) A variant of tri- used to indicate that the component that does not take the prefix occurs three times in the compound: trisphosphuret of copper is PCu3; trisbenzeneazo resorcinol, C6H(OH)2(N2Ph)3. · (chemistry) A variant of tri-, used for substitutions of three complex rather than simple units, as in,

1(crystallography) A solid of the isometric system bounded by 24 equal faces, three corresponding to each face of an octahedron.
2(geometry) triakis octahedron