noun
monoclinic crystal system
Technical term in geology and crystallography. Refers to one of the seven crystal systems, characterized by three unequal axes with one oblique intersection.
石膏は単斜晶系に属する鉱物です。
Gypsum is a mineral that belongs to the monoclinic crystal system.
Compound of 単斜 (monoclinic) and 晶系 (crystal system). The exact historical derivation is uncertain; the term is a modern scientific coinage.