noun
Technical term used in physics and engineering for the degree to which a material conducts electricity or heat.
銅は電気伝導度が高い金属です。
Copper is a metal with high electrical conductivity.
この材料の熱伝導度を測定してください。
Please measure the thermal conductivity of this material.
Compound of 伝導 (conduction) and 度 (degree). The exact historical derivation is uncertain, but the term is a standard technical coinage.