[ dī′ə-thûr′məl ]
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for diathermal
Heat passes through these as easily as does light through a diamond, such stones being classed as diathermal (to heat through).