Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A sensory receptor that responds to pain.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A sensory receptor that sends signals that cause the perception of pain in response to a potentially damaging stimulus.

Etymologies

Latin nocēre, to hurt; see nocent + (re)ceptor.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin nocēre ("to hurt") + contracted form of (re)ceptor (Wiktionary)

Examples

  • This hard-wired injury detection mode for pain is called "nociception", meaning detection of harm, while the nerves which detect the damage are called nociceptor nerves ( "nociceptors" for short).

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  • Sarah O. beat me to the nociceptor bombardment stuff so I'll just stop here.

    why suffer when you don't have to?

  • Activity induced in the nociceptor and nociceptive pathways by a noxious stimulus is not pain, which is always a psychological state, even though we may well appreciate that pain most often has a proximate physical cause.

    Pain

  • Such nociceptor activation, for example, was first shown in vivo in fetal rats 25.

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  • By selectively stimulating a particular nociceptor, a finely tuned PEP might sensations of say, being burned, frozen or dipped in acid -- all without doing the slightest actual harm.

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  • If this be true, then if every nociceptor in the body were equally stimulated in such a manner that all the stimuli should reach the brain-cells simultaneously, then the cells would find themselves in equilibrium and no motor act would be performed.

    The Origin and Nature of the Emotions: Miscellaneous Papers

  • In the abdominal viscera, as in the superficial parts, nociceptors have presumably been developed by specific harmful influences and each nociceptor is open to stimulation only by a stimulus of the particular type that produced it.

    The Origin and Nature of the Emotions: Miscellaneous Papers

  • The effect of the adequate stimulus of a nociceptor is like that of pressing an electric button that sets great machinery in motion.

    The Origin and Nature of the Emotions: Miscellaneous Papers

  • For example, the impulse from the delicate ticklish points of the skin, whose adequate stimulus is an insect-like contact, could not successfully compete for the final common path with the stimulus of a nociceptor.

    The Origin and Nature of the Emotions: Miscellaneous Papers

  • Clinical evidence regarding this point is abundant, for in patients with Graves 'disease we find that the three types of conversion of energy resulting from emotional stimulation, from infection stimulation, and from nociceptor stimulation (pain), are, as nearly as can be judged, equally exaggerated.

    The Origin and Nature of the Emotions: Miscellaneous Papers

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