IPA: /ˌdaɪəˈθɜːrmɪk/
KK: /daɪəˈθɜrmɪk/
Relating to a method that allows heat to pass through materials easily.
The diathermic properties of the material make it ideal for use in heating applications.
Diathermic → It is formed from "dia-" (meaning through) and "thermē" (meaning heat). The word describes the ability to transmit heat through a substance.
Think of 'through' ('dia-') allowing 'heat' ('thermē') to pass — that's what diathermic means.