[ri-troo-zhuh n, -shuh n]
the act of moving a tooth backward.
a condition characterized by the backward displacement of a tooth or teeth.
Origin of retrusion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Retraction from any given point, especially the backward movement of the mandible.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.