anaclasis

[ə-năklə-sĭs]
n.
  1. Reflection of light or sound.
  2. Refraction of the ocular media.
  3. Forcible flexion of a joint to break up adhesions associated with fibrous ankylosis.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.