antinociception
noun
an·ti·no·ci·cep·tion
ˌant-i-ˌnō-si-ˈsep-shən, ˌan-ˌtī- 
: the action or process of blocking the detection of a painful or injurious stimulus by sensory neurons
Compared with systemic narcotic analgesia, intraspinal narcotic antinociception has a longer duration.—
Dennis W. Coombs, The Journal of the American Medical Association
Dennis W. Coombs, The Journal of the American Medical Association
antinociceptive
adjective
… the antinociceptive action of morphine and endogenous opiates apparently proceeds by opening of the same class of neuronal potassium channels blocked by apamin.
—David Gurwitz, The Lancet
David Gurwitz, The Lancet
Cite this Entry
“Antinociception.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/antinociception. Accessed 4 Nov. 2025.
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