The most common and most likely answer to this crossword clue is the 9 letter word DIATHERMY
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More clues leading to the result DIATHERMY
Buddy explains!
The straight part
We know that "therapeutic generation of heat in body" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case therapeutic generation of heat in body = diathermy.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does DIATHERMY mean?
DIATHERMY noun- The generation of heat using high-frequency electromagnetic currents; especially the therapeutic production of heat in tissues in order to form coagulation