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regular polyhedron

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Regular \Reg"u*lar\ (-l?r), a. [L. regularis, fr. regula a rule,
   fr. regere to guide, to rule: cf. F. r['e]gulier. See
   {Rule}.]
   1. Conformed to a rule; agreeable to an established rule,
      law, principle, or type, or to established customary
      forms; normal; symmetrical; as, a regular verse in poetry;
      a regular piece of music; a regular verb; regular practice
      of law or medicine; a regular building.

   2. Governed by rule or rules; steady or uniform in course,
      practice, or occurence; not subject to unexplained or
      irrational variation; returning at stated intervals;
      steadily pursued; orderlly; methodical; as, the regular
      succession of day and night; regular habits.

   3. Constituted, selected, or conducted in conformity with
      established usages, rules, or discipline; duly authorized;
      permanently organized; as, a regular meeting; a regular
      physican; a regular nomination; regular troops.

   4. Belonging to a monastic order or community; as, regular
      clergy, in distinction dfrom the secular clergy.

   5. Thorough; complete; unmitigated; as, a regular humbug.
      [Colloq.]

   6. (Bot. & Zo["o]l.) Having all the parts of the same kind
      alike in size and shape; as, a regular flower; a regular
      sea urchin.

   7. (Crystallog.) Same as {Isometric}.

   {Regular polygon} (Geom.), a plane polygon which is both
      equilateral and equiangular.

   {Regular polyhedron} (Geom.), a polyhedron whose faces are
      equal regular polygons. There are five regular
      polyhedrons, -- the tetrahedron, the hexahedron, or cube,
      the octahedron, the dodecahedron, and the icosahedron.

   {Regular sales} (Stock Exchange), sales of stock deliverable
      on the day after the transaction.

   {Regular troops}, troops of a standing or permanent army; --
      opposed to militia.

資料來源 : WordNet®

regular polyhedron
     n : any one of five solids whose faces are congruent regular
         polygons and whose polyhedral angles are all congruent
         [syn: {regular convex solid}, {regular convex polyhedron},
          {Platonic body}, {Platonic solid}, {ideal solid}]
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