non·in·va·sive

[non-in-vey-siv]
adjective Medicine/Medical.
1.
not invading adjacent healthy cells, blood vessels, or tissues; localized: a noninvasive tumor.
2.
not entering or penetrating the body or disturbing body tissue, especially in a diagnostic procedure.

Origin:
1970–75; non- + invasive

non·in·va·sive·ly, adverb
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World English Dictionary
noninvasive (ˌnɒnɪnˈveɪsɪv) [Click for IPA pronunciation guide]
 
adj
(of medical treatment) not involving the making of a relatively large incision in the body or the insertion of instruments, etc, into the patient

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00:10
Noninvasive is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
American Heritage
Medical Dictionary

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

  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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Example sentences
The pillar palatal implant is a noninvasive surgical treatment for
  mild-to-moderate sleep apnea and snoring.
Ultrasound is a simple, rapid, and noninvasive imaging technique.
Other, noninvasive tests such as cardiac ultrasound are less risky, but not as
  accurate.
We are currently evaluating the use of infrared thermography as a noninvasive
  tool to measure stress in a variety of animals.
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