hemihedral

Related to hemihedral: hemialgia

hem·i·he·dral

 (hĕm′ĭ-hē′drəl)
adj.
Exhibiting only half the faces required for complete symmetry. Used of a crystal.

hemihedral

(ˌhɛmɪˈhiːdrəl)
adj
(Chemistry) (of a crystal) exhibiting only half the number of planes necessary for complete symmetry

hem•i•he•dral

(ˌhɛm ɪˈhi drəl)

adj.
(of a crystal) having only half the planes or faces required by the maximum symmetry of the system to which it belongs.
[1830–40]
hem`i•he′dral•ly, adv.
References in periodicals archive ?
Crystal Physics-Development by Pressure of Polar Electricity in Hemihedral Crystals with Inclined Faces, Acad.
Wurtzite" was first reported from the 200 and 300 levels (61 and 91 m) of the Gagnon mine by Pearce (1887), as brown to black masses and as rare, small, hemihedral hexagonal pyramids associated with quartz and barite.
The hexagonal brown crystals turned out to be hemihedral.