Dictionary

pentakaidecahedron en · NOUN

Etymology

From penta- (“five”) + -kai- (“and”) + deca- (“ten”) + -hedron.

Meanings

1. Synonym of pentadecahedron.
   • An ideal unit cell consists of ten dodecahedrons, sixteen tetrakaidecahedrons and four pentakaidecahedrons. 2003, Japanese Journal of Applied Physics, page 130, column 2:
   • The host structure is similar to that of the (n–C₄H₉)₄ N⁺C₆H₅COOH⁻·39.5 H₂O consisting of a tetragonal body-centered arrangement of groups of five face-sharing pentagonal dodecahedra interlinked by tetrakaidecahedra and pentakaidecahedra. 1963, Lee Leiserson, William H. McCoy, “Branch of Inorganic Chemistry”, in Saline Water Conversion Report for 1963, Washington, D.C.: United States Department of the Interior, page 4, column 1:
   • 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). 1935, R[oger] P[hilip] Wodehouse, “Angiospermae”, in Pollen Grains: Their structure, identification and significance in science and medicine, New York, N.Y.; London: McGraw-Hill Book Company, Inc., part II (Classification), section “Dicotyledons”, subsection “Compositae”, subsubsection “Cichorieae”, page 481:

Forms

Relateds

pentakaidecahedral

Synonyms

pentadecahedron