pentahedron

1. 1.

   any polyhedron having five plane faces

   Broaderpolyhedron

Other forms of pentahedron

plural

pentahedra

Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.

Questions about pentahedron

What does pentahedron mean?

pentahedron means "any polyhedron having five plane faces".

How many syllables are in pentahedron?

pentahedron has 4 syllables and divides as pen-ta-he-dron under the regular spelling rules. It is not in the CMU Pronouncing Dictionary, so that comes from how the word is written rather than from a recorded pronunciation, and no stress or phonetic transcription is claimed for it.