As an adjective orthorhombic
is (crystallography) having three unequal axes at right angles.
As a noun hypersthene is
(mineral) an inosilicate that is an orthorhombic pyroxene.
orthorhombic
English
Adjective
(-)
(crystallography) having three unequal axes at right angles
See also
* triclinic
* monoclinic
* hexagonal
* rhombohedral
* tetragonal
* cubic
* pseudoorthorhombic