单词 | pentadodecahedron |
释义 | > as lemmaspentadodecahedron pentadodecahedron n. Brit. , U.S. Geometry rare a regular dodecahedron; a dodecahedron having twelve pentagonal faces.ΘΚΠ the world > relative properties > number > geometry > shape or figure > [noun] > three-dimensional > contained by pentagons pentadodecahedron1869 pentagon-dodecahedron1895 pentagonohedron1895 1869 J. Phillips Vesuvius x. 273 These five types of form, all regular,..and all parts of one equi-axed system, may be named and employed to designate crystals,..the cube, octahedron,..penta-dodecahedron. 1975 R. B. Fuller & E. J. Applewhite Synergetics 318 Necklace cubes, rhombic dodecahedra, pentadodecahedra, vector equilibria, and tetrakaidecahedra are all unstable. < as lemmas |
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