heptakaidecahedron

名词 n.

英文释义

名词 n.
  1. Synonym of heptadecahedron.
    — The lacunar pattern of this grain therefore includes six tetragonal and nine hexagonal faces. Relating this to polyhedrons, we find that no pentakaidecahedron with such a combination of faces can exist (see page 199). If, however, the two polar areas be regarded as filled-in hexagonal lacunae, making 17 lacunae in all, the pattern corresponds to a heptakaidecahedron with 6 tetragonal and 11 hexagonal faces, which appears to be the proper interpretation of this pattern.

词形变化

heptakaidecahedra plural

词源

From Ancient Greek ἑπτᾰ́ (heptắ, “seven”) + καί (kaí, “and”) + δέκᾰ (dékă, “ten”) + -hedron.
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