v. To change direction as a result of entering a different medium
v. To cause (light) to change direction as a result of entering a different medium.
the GNU version of the Collaborative International Dictionary of English
v. To bend sharply and abruptly back; to break off.
v. To break the natural course of, as rays of light orr heat, when passing from one transparent medium to another of different density; to cause to deviate from a direct course by an action distinct from reflection.
The Century Dictionary and Cyclopedia
To bend back sharply or abruptly; especially, in optics, to break the natural course of, as of a ray of light; deflect at. a certain angle on passing from one medium into another of a different density. See refraction.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. subject to refraction
v. determine the refracting power of (a lens)
Word Usage
"Anna half imagined that the stars were flickering: since there was no atmosphere to refract their light, they were being distorted by cloaking fields."