adjective Medicine/Medical.

not invading adjacent healthy cells, blood vessels, or tissues; localized: a noninvasive tumor.
not entering or penetrating the body or disturbing body tissue, especially in a diagnostic procedure.

Origin of noninvasive

First recorded in 1970–75; non- + invasive
Related formsnon·in·va·sive·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for non-invasive

Contemporary Examples of non-invasive

Historical Examples of non-invasive

  • This is the Anarchistic definition of government: the subjection of the non-invasive individual to an external will.


    Paul Eltzbacher

British Dictionary definitions for non-invasive



(of medical treatment) not involving the making of a relatively large incision in the body or the insertion of instruments, etc, into the patient
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

Word Origin and History for non-invasive

also noninvasive, by 1850, from non- + invasive.

Online Etymology Dictionary, © 2010 Douglas Harper

non-invasive in Medicine




Not penetrating the body, as by incision. Used especially of a diagnostic procedure.
Not invading healthy tissue.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.