noninvasive
adjective
non·in·va·sive
ˌnän-in-ˈvā-siv 
-ziv
1
: not tending to spread
specifically
: not tending to infiltrate and destroy healthy tissue
noninvasive cancer of the bladder
2
: not being or involving an invasive medical procedure
noninvasive imaging techniques
noninvasively
adverb
Examples of noninvasive in a Sentence
noninvasive techniques of measuring brain activity
Recent Examples on the Web
Although noninvasive stool tests such as Cologuard can make screening easier to access, colonoscopy remains the gold standard for colorectal cancer detection.
—
Kaitlin Sullivan, NBC news, 15 Feb. 2026
Managing the genetic health of such a small population is essential for the species’ long-term viability, and the hair-collection method offers a noninvasive way to gather vital data without disturbing the wombats in their burrows.
—Hanna Wickes, Kansas City Star, 13 Feb. 2026
This experiment involved a noninvasive technique called transcranial magnetic simulation, or TMS, in which doctors place a wand containing a magnetic coil over the scalp, just on top of M1.
—Allison Parshall, Scientific American, 4 Feb. 2026
Why noninvasive glucose tracking matters Blood sugar levels can rise or fall quickly.
—Kurt Knutsson, FOXNews.com, 17 Jan. 2026
See All Example Sentences for noninvasive
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Kaitlin Sullivan, NBC news, 15 Feb. 2026
Managing the genetic health of such a small population is essential for the species’ long-term viability, and the hair-collection method offers a noninvasive way to gather vital data without disturbing the wombats in their burrows.
—Hanna Wickes, Kansas City Star, 13 Feb. 2026
This experiment involved a noninvasive technique called transcranial magnetic simulation, or TMS, in which doctors place a wand containing a magnetic coil over the scalp, just on top of M1.
—Allison Parshall, Scientific American, 4 Feb. 2026
Why noninvasive glucose tracking matters Blood sugar levels can rise or fall quickly.
—Kurt Knutsson, FOXNews.com, 17 Jan. 2026
See All Example Sentences for noninvasive
Cite this Entry
“Noninvasive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/noninvasive. Accessed 18 Feb. 2026.
Copy CitationMedical Definition
noninvasive
adjective
non·in·va·sive
ˌnän-in-ˈvā-siv, -ziv
1
: not tending to spread
specifically
: not tending to infiltrate and destroy healthy tissue
noninvasive cancer of the bladder
2
: not being or involving an invasive medical procedure
noninvasive imaging techniques that do not require the injection of dyes
noninvasively
adverb
noninvasiveness
noun
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