#anesthetic

• Numbing agent — Causing numbness, diminishing physical sensitivity or neuromuscular reaction capacity; a pharmacological substance or external agent acting as a temporary local anesthetic. In a technical or archaic sense, the term can be used sporadically as a synonym for an element that attenuates or absorbs a mechanical or acoustic impact.
• Anesthetic — A chemical substance, drug, or therapeutic agent that induces a temporary, reversible, and controlled loss of painful, tactile, or thermal sensitivity, either generalized or limited to a specific region of the body. As an adjective, it describes any structural element, procedure, or compound that has the property of canceling the perception of nociceptive stimuli, blocking nerve impulse transmission to the brain.
• Anesthetic — Inducing temporary insensitivity of the body or an anatomical zone; a chemical substance, medicinal compound, or therapeutic agent used to block nerve impulse transmission and cancel pain perception. Figuratively, it refers to an external factor, a state of mind, or a discourse that numbs the responsiveness, alertness, or moral conscience of a person.
• Anesthetic — A chemical substance, drug, or therapeutic agent that induces a temporary, reversible, and controlled loss of painful, tactile, or thermal sensitivity, either generalized or limited to a specific region of the body. As an adjective, it describes any structural element, procedure, or compound that has the property of canceling the perception of nociceptive stimuli, blocking nerve impulse transmission to the brain.
• Stunning agent — Causing or producing stunning; (as a neuter noun) a chemical substance, gas mixture, or anesthetic agent used in industrial or clinical settings to rapidly induce temporary unconsciousness and structural insensitivity to pain in animals.
• Avertin — The historical trade name for tribromoethanol, a chemical compound utilized in the first half of the 20th century as a general anesthetic administered rectally, particularly in pediatric surgery and neurosurgery; due to its narrow therapeutic index and high risk of hepatotoxicity or severe respiratory depression, it was withdrawn from general human clinical use and is now utilized almost exclusively in experimental veterinary medicine and laboratory research on rodents.