👉 The term "diaphanoscope" refers to a type of instrument used for viewing and measuring the size, shape, or volume of an object. It is commonly used in medical fields such as radiology, where it helps doctors determine the exact size of a tumor, organ, or other structure within a patient's body. The diaphanoscope consists of two telescopes that are mounted on a long arm and connected by a motor to allow for precise movement and adjustment of the viewing window.