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Babylon English English dictionary

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n. substance which reduces sensitivity to pain (i.e. ether or halothane)
adj. (Medicine) serving to reduce the ability to feel pain, of or pertaining to reducing sensitivity to pain (of drugs); (Pathology) causing lack of feeling (of a disease)

Wikipedia English The Free Encyclopedia

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An anesthetic (anaesthetic or anæsthetic in British English) is a drug that causes anesthesia, which is a reversible loss of sensation. Anesthetics contrast with analgesics (painkillers), which relieve pain without eliminating sensation. These drugs are generally administered to facilitate surgery. A wide variety of drugs are used in modern anesthetic practice. Many are rarely used outside of anesthesia, although others are used commonly by all disciplines. Anesthetics are categorized into two classes: general anesthetics, which cause a reversible loss of consciousness, and local anesthetics, which cause a reversible loss of sensation for a limited region of the body while maintaining consciousness. Combinations of anesthetics are sometimes used for their synergistic and additive therapeutic effects. Adverse effects, however, may also be increased.

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WordNet 2.0 Dictionary

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1. a drug that causes temporary loss of bodily sensations
(synonym) anaesthetic, anesthetic agent, anaesthetic agent
(hypernym) drug
(hyponym) general anesthetic, general anaesthetic
(derivation) anesthetize, anaesthetize, anesthetise, anaesthetise, put to sleep, put under, put out

1. characterized by insensibility; "the young girls are in a state of possession--blind and deaf and anesthetic"; "an anesthetic state"
(synonym) anesthetic(a), anaesthetic(a)
(similar) insensible

Webster's Revised Unabridged Dictionary (1913)

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Same as Anaesthesia, Anaesthetic.

Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About

Dictionary of Medicine

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A substance that causes lack of feeling or awareness. A local anesthetic causes loss of feeling in a part of the body. A general anesthetic puts the person to sleep.

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