Simple Definition of noninvasive

from our Learner's Dictionary

noninvasive

adjective

ˌnɑːnɪnˈveɪsɪv How to pronounce noninvasive (audio)
medical : done without cutting the body or putting something into the body
noninvasive techniques of measuring brain activity

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“Noninvasive.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/noninvasive. Accessed 20 Jun. 2026.

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