[ proh-troo-zhuhn, pruh- ]
/ proʊˈtru ʒən, prə- /


the act of protruding or the state of being protruded.
something that protrudes or projects.

Origin of protrusion

1640–50; < Latin prōtrūs(us) (past participle of prōtrūdere to protrude) + -ion

Related forms

non·pro·tru·sion, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for protrusion

British Dictionary definitions for protrusion


/ (prəˈtruːʒən) /


something that protrudes
the state or condition of being protruded
the act or process of protruding
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for protrusion


[ prō-trōōzhən ]


The act of protruding.
The state of being protruded.
A position of the mandible forward from centric relation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.