anaesthetic

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anaesthetic

(ăn′ĭs-thĕt′ĭk)
adv. & n.
Variant of anesthetic.

anaesthetic

adjective
(1) Inducing, referring to, or characterised by anaesthesia.
(2) Characterised by a loss of sensation or awareness; numbness.
 
noun An agent or drug that limits or eliminates sensation of pain or awareness of surroundings.

an·es·thet·ic

(an'es-thet'ik)
1. A compound that depresses neuronal function, producing loss of ability to perceive pain and/or other sensations.
2. Collective designation for anesthetizing agents administered to a person at a particular time.
3. Characterized by loss of sensation or capable of producing loss of sensation.
4. Associated with or due to the state of anesthesia.
Synonym(s): anaesthetic.

anaesthetic

1. Insensitive.
2. Relating to anaesthesia.
3. Causing anaesthesia.
4. A drug used to cause unconsciousness or insensitivity to pain.

anaesthetic 

Any substance used to produce a loss of pain sensation either in the whole of the body when unconscious (general anaesthetic) or to some part of the body when awake (local anaesthetic). Note: also spelt anesthetic.
local anaesthetic's Chemical agents that prevent the transmission of nerve impulses by binding to the sodium channel and thus blocking the transient rush of sodium ions through the cell membrane. They act locally and without loss of consciousness. They can be either ester-linked (e.g. benoxinate, cocaine, oxybuprocaine hydrochloride (benoxinate), proxymetacaine hydrochloride, and tetracaine hydrochloride) or amide-linked (e.g. bupivacaine, lidocaine hydrochloride and procaine). Ester types are applied mainly topically whereas amide types are usually administered by injection. See peribulbar injection; receptor potential.

an·es·thet·ic

(an'es-thet'ik)
1. Agent or compound that reversibly depresses neuronal function, which produces loss of ability to perceive pain and/or other sensations.
2. Characterized by loss of sensation or capable of producing loss of sensation.
Synonym(s): anaesthetic.