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[non-in-vey-siv] /ˌnɒn ɪnˈveɪ sɪv/
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
1970-75; non- + invasive
Related forms
noninvasively, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for noninvasive
  • The video also displays a virtual colonoscopy, which scans the intestines with sophisticated, noninvasive imaging tools.
  • For patients who are not as sick, the panel recommended noninvasive imaging techniques.
  • Both treatments were developed at around the same time, but lithotripsy shot up rapidly because of its noninvasive nature.
  • Ultrasound is a simple, rapid, and noninvasive imaging technique.
  • Surgery is a reasonable option if symptoms do not improve with noninvasive methods.
  • Supplemental oxygen with controlled oxygen therapy and noninvasive positive pressure ventilation.
  • The pillar palatal implant is a noninvasive surgical treatment for mild-to-moderate sleep apnea and snoring.
  • Chemicals have also been used to control invasive species, but they can sometimes harm noninvasive plants and animals.
  • We are currently evaluating the use of infrared thermography as a noninvasive tool to measure stress in a variety of animals.
  • Failure to find cancer with noninvasive tests doesn't mean it isn't there.
British Dictionary definitions for noninvasive


(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
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noninvasive in Medicine

noninvasive non·in·va·sive (nŏn'ĭn-vā'sĭv)

  1. Not penetrating the body, as by incision. Used especially of a diagnostic procedure.

  2. Not invading healthy tissue.

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