goniométer
A goniometer is an instrument used for measuring angles. The term originates from the Greek words gonia, meaning angle, and metron, meaning measure. Goniometers are employed in a variety of fields, including medicine, physics, engineering, and surveying.
In medicine, goniometers are often used to measure the range of motion of joints in the body.
In physics and engineering, goniometers can be used to measure angles of incidence, reflection, or refraction
The design of goniometers varies depending on their application. Some are simple protractor-like devices with a