Of or relating to a crystalline structure of three mutually perpendicular axes of different length.
having three unequal axes at right sides
Noting the machine of crystallization which has three unequal axes at correct sides to one another; trimetric. See crystallization.
Rectangular and rhombic.
In crystallography, noting the machine of crystallography which can be described as three unequal axes intersecting at correct perspectives; owned by this technique: as, sulphur is orthorhombic. Also called trimetric. See crystallography.