Refracted

Part of speech: verb

Definitions

1. The change in the direction of waves like light when they encounter a different medium, often due to the density difference, is a physical phenomenon
2. This refers to the alteration in the path of light or other waves as they pass through materials with varying optical densities, affecting their velocity and trajectory
3. When light or waves bend and alter their course as they move from one material to another with different density

Etymology: "Refracted" is the past form of "refract," so its story is really the story of the verb. The verb comes from Latin "refringere," meaning "to break up" or "to break open," built from "re-" (meaning "again" or "back") and "frangere" ("to break"). The Latin past participle "refractum" carried that sense of something broken apart, and English took the verb straight from that Latin root. The breaking metaphor is still visible in the physics. When light crosses from air into water, it bends at the boundary, as if the beam has been snapped out of its original line. Early writers saw the light itself as being broken, which is why the Latin image of fracture fit so well. The word therefore describes a change of direction that feels like a fracture, even though nothing physical has split.

Synonyms: bent, deflected

Antonyms: straight