— diathermanous , adj.
/duy'euh therr"meuhn see/ , n. , pl. diathermancies .
the property of transmitting heat as electromagnetic radiation.
[ 1830-40; diathermansie dia- DIA- + thérmansis heating, equiv. to therman- (var. s. of thermaínein to warm, heat, deriv. of thermós hot) + -sis -SIS ]