pen·ta·he·dron 
(pĕn′tə-hēdrən)
(pĕn′tə-hēdrən)n. pl. pen·ta·he·drons or pen·ta·he·dra (-drə)
A solid having five plane faces.
pen′ta·hedral (-drəl) adj.
pentahedron- photo essay
- photo-essayist
- photo finish
- photoflash
- photoflood
- photofluorogram
- photofluorographic
- photofluorography
- photog
- photogelatin process
- photogene
- photogenic
- photogenically
- photogram
- photogrammetric
- photogrammetrist
- photogrammetry
- photograph
- photographable
- photographer
- photographic
- photographical
- photographically
- photography
- photogravure