What does "son/o" refer to in the context of medical terminology?

In the context of medical terminology, "son/o" refers to sound. This prefix is derived from the Latin word "sonus," meaning sound, and is commonly used in various medical terms related to sound, especially in fields such as diagnostic imaging. For instance, "sonography" refers to imaging techniques that use sound waves to visualize internal structures of the body, such as in ultrasound examinations. Understanding this prefix can help in grasping how sound is utilized in medical diagnostics and treatments, facilitating communication in healthcare settings. The other options represent different senses or forms of energy, but they do not align with the definition of "son/o."