¹ *Source: wiktionary.com*

### Definition of Pentahedra

**1.** pentahedron [n] - See also: pentahedron

### Pentahedra Pictures

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### Lexicographical Neighbors of Pentahedra

### Literary usage of Pentahedra

Below you will find example usage of this term as found in modern and/or classical literature:

**1.** *Catalogue of the Mollusca in the Collection of the British Museum* by John Edward Gray (1849)

"Terebratula **pentahedra**, Miinster, Beitrage, p. 109. Bronn, Index, p. 1244 (not Ter.
**pentahedra** minor, ..."**2.** *The Cambridge and Dublin Mathematical Journal* by William Whewell, Duncan Farquharson Gregory, Robert Leslie Ellis, William Thomson Kelvin, Norman Macleod Ferrers (1852)

"... and most of the preceding theorems that have reference to octahedra and
**pentahedra** might be enunciated as properties of the complete ..."**3.** *The Cambridge and Dublin Mathematical Journal* (1852)

"It thus appears that the four **pentahedra** have three faces, and consequently ...
that the triangular faces of the **pentahedra** are the faces of the octahedron ..."**4.** *The Monist* by Hegeler Institute (1916)

"From the sixth line of the arithmetical triangle we find that such a figure is
bounded by 6 corners, 15 edges, 20 surfaces, 15 tetrahedra, 6 **pentahedra**, ..."**5.** *Catalogue of Scientific Papers, 1800-1900: Subject Indexby Royal Society (Great Britain), Herbert McLeod* by Royal Society (Great Britain), Herbert McLeod (1908)

"Quadrilaterals, analogues in space to two properties of. Weddle, T. Camb. and Dubl.
Mth. J. 5 (1850) 238-. — and **pentahedra**, correspondence. ..."**6.** *Mathematical Papers* by William Kingdon Clifford (1882)

"B2, (2) in an infinity of **pentahedra** self-conjugate to 52, (3) in an infinity of
hexahedra self-conjugate to 52. The terms conjugate hexahedron^ conjugate ..."