eicosaedrum

释义与例句

n.
  1. 1.

    Obsolete form of icosahedron.

    废旧

    […] That there are Five regular Bodies in Geometry, neither more nor less, viz., the Cube, the Tetraedrum, the Octaedrum, the Dodecaedrum and the Eicosaedrum […]

词源

From εἴκοσι (eíkosi) (twenty) + ἕδρα (hédra) (seat, base).

来源：wiktionary