What does the root "therm/o" indicate in medical terminology?

The root "therm/o" signifies "heat" in medical terminology. This root is derived from the Greek word "thermos," meaning warm or hot. Its application can be seen in various medical terms related to temperature or heat measurements, like "thermometer" (an instrument for measuring temperature) and "thermotherapy" (the use of heat in medical treatments). Understanding this root is essential for interpreting and constructing medical terms that involve aspects of temperature, whether relating to body temperature, therapeutic processes, or diagnostic measures associated with heat.