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.
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)