noun
ternary material
Technical term used in materials science and semiconductor engineering for a material composed of three elements.
この３元材料は、次世代半導体の開発に不可欠だ。
This ternary material is essential for the development of next-generation semiconductors.
Refers to a binary material (two elements), while ３元材料 is a ternary material (three elements).
Compound of ３元 (さんげん, 'three-component') and 材料 (ざいりょう, 'material'). The term is a direct technical calque from English 'ternary material'.