noun
orthorhombic crystal system
Technical term in geology and crystallography. Refers to a crystal system with three mutually perpendicular axes of different lengths.
See also: 直方晶系
斜方晶系に属する鉱物の例として、トパーズが挙げられる。
Topaz is an example of a mineral belonging to the orthorhombic crystal system.
直方晶系 is an alternative term for the orthorhombic crystal system, but 斜方晶系 is more common in modern usage.
Compound of 斜方 (shahō, 'oblique') + 晶系 (shōkei, 'crystal system'). The term is a direct translation of the English 'orthorhombic crystal system'.