refract

This term is primarily used in scientific and technical contexts, specifically within physics and optics. It describes the precise physical phenomenon where a wave changes speed and direction upon entering a new medium, such as light moving from air into glass. It is a neutral, descriptive term devoid of emotional connotation.

While "bend" is often used as a layman's synonym to describe the visual effect of refraction, "refract" is the correct terminology for the actual physical process. Using "refract" signals a higher register of technical precision and is expected in academic or professional scientific discourse.