non-crystalline solid; amorphous solid
Physics term for a solid that lacks long-range atomic order, such as glass or many plastics.
Glass is a typical example of an amorphous solid.
Amorphous solids do not have a regular structure like crystals.
Compound of 非 (non-), 晶質 (crystalline), and 固体 (solid). A modern technical term formed from kanji components.