Meaning of heptakaidecahedron | Babel Free
Definitions
Examples
“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.”
“The host⟳ lattice consists of 156 water molecules per unit cell, which form⟳ 16 identical heptakaidecahedra (17-hedra) and 12 identical octahedra (8-hedra) in a face⟳ sharing arrangement with cubic symmetry.”
“Other clathrates are the Br₂ hydrate with a pentakaidecahedral cage of water molecules or the tert-butylamine hydrate with a heptakaidecahedron cage of water molecules.”
CEFR level
C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
This word is part of the CEFR C2 vocabulary — mastery level.
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