Noun
Absence of sensibility to pain.
Source: Webster's dictionaryAnalgesics Analgesics (also known as "painkillers") are used to relieve pain (achieve analgesia). Source: Internet
Both analgesia and drug addiction are functions of the mu opioid receptor, the class of opioid receptor first identified as responsive to morphine. Source: Internet
As such, in general, the idea of alcohol for analgesia is considered a primitive practice in virtually all industrialized countries today. Source: Internet
Endorphins, a contraction of the term endogenous morphines, are responsible for analgesia (reducing pain), causing sleepiness, and feelings of pleasure. Source: Internet
Episodic analgesia may occur under special circumstances, such as in the excitement of sport or war: a soldier on the battlefield may feel no pain for many hours from a traumatic amputation or other severe injury. Source: Internet
Dextromethorphan has been noted to slow the development of tolerance to opioids and exert additional analgesia by acting upon the NMDA receptors; some analgesics such as methadone and ketobemidone and perhaps piritramide have intrinsic NMDA action. Source: Internet