Meaning of scalenohedron

sca•le•no•he•dron

Pronunciation: (skā-lē"nu-hē'drun), [key]
— pl. -drons, -dra
  1. a hemihedral crystal form of 8 or 12 faces, each face being a scalene triangle.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.