anaesthetic

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anaesthetic

(ăn′ĭs-thĕt′ĭk)
adv. & n.
Variant of anesthetic.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

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.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

anaesthetic

1. Insensitive.
2. Relating to anaesthesia.
3. Causing anaesthesia.
4. A drug used to cause unconsciousness or insensitivity to pain.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

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.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

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.
Medical Dictionary for the Dental Professions © Farlex 2012