noun, noun which may take the genitive case particle 'no'
polycrystal; polycrystalline
Technical term used in materials science and crystallography. As a noun, refers to a solid composed of many small crystals. As a no-adjective, describes something consisting of multiple crystals.
多結晶シリコンは太陽電池に広く使われている。
Polycrystalline silicon is widely used in solar cells.
この材料は多結晶構造を持っている。
This material has a polycrystalline structure.