noun
Refers to a material or object that conducts or transmits something, such as heat, electricity, or sound. Often used in scientific or technical contexts.
銅は電気の良い伝導体です。
Copper is a good conductor of electricity.
この金属は熱の伝導体
This metal is used as a conductor of heat.
絶縁体 is an insulator, the opposite of a conductor.
Compound of 伝導 (でんどう, 'conduction') and 体 (たい, 'body'). The term is a modern technical coinage.