Wolff's law

[vôlfs]

n.

The principle that every change in the form and the function of a bone or in the function of the bone alone, leads to changes in its internal architecture and in its external form.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.