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Related to general anesthetics: Local anesthetics
drugs used either by the intravenous route or by inhalation that render the subject unconscious and incapable of perceiving pain such as might otherwise occur in surgery.
gen·er·al an·es·thet·ics(jenĕr-ăl anes-thetiks)
Drugs used either intravenously or by inhalation that render patient unconscious and incapable of perceiving pain in surgery.