anaesthesia

[an-uhs-thee-zhuh]
noun Medicine/Medical, Pathology.

anaesthetic [an-uhs-thet-ik] , adjective, noun
anaesthetist [uh-nes-thi-tist or, esp. British, uh-nees-] , noun
semianaesthetic, adjective
Dictionary.com Unabridged

anesthetic

[an-uhs-thet-ik]
noun
1.
a substance that produces anesthesia, as halothane, procaine, or ether.
adjective
2.
pertaining to or causing physical insensibility: an anesthetic gas.
3.
physically insensitive: Halothane is used to produce an anesthetic state.
Also, anaesthetic.


Origin:
1840–50, Americanism; < Greek anaísthēt(os) without feeling, senseless + -ic; see an-1, esthetic

anesthetically, adverb
nonanesthetic, adjective, noun
postanesthetic, adjective
semianesthetic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
anaesthesia or (US) anesthesia (ˌænɪsˈθiːzɪə)
 
n
1.  local or general loss of bodily sensation, esp of touch, as the result of nerve damage or other abnormality
2.  loss of sensation, esp of pain, induced by drugs: called general anaesthesia when consciousness is lost and local anaesthesia when only a specific area of the body is involved
3.  a general dullness or lack of feeling
 
[C19: from New Latin, from Greek anaisthēsia absence of sensation, from an- + aisthēsis feeling]
 
anesthesia or (US) anesthesia
 
n
 
[C19: from New Latin, from Greek anaisthēsia absence of sensation, from an- + aisthēsis feeling]

anaesthetics (ˌænɪsˈθɛtɪks)
 
n
(functioning as singular) US name: anesthesiology the science, study, and practice of anaesthesia and its application

anesthetic (ˌænɪsˈθɛtɪk)
 
n, —adj
the usual US spelling of anaesthetic

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

anaesthesia
1721, "loss of feeling," Mod.L., from Gk. anaisthesia "lack of sensation," from an- "without" + aisthesis "feeling," from PIE base *au- "to perceive" (see audience).

anesthetic
alt. spelling of anaesthetic (q.v.). See ae.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

anesthetic an·es·thet·ic (ān'ĭs-thět'ĭk)
n.
An agent that reversibly depresses neuronal function, producing total or partial loss of sensation. adj.

  1. Characterized by the loss of sensation.

  2. Capable of producing a loss of sensation.

  3. Associated with or due to the state of anesthesia.


an'es·thet'i·cal·ly adv.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
anesthetic   (ān'ĭs-thět'ĭk)  Pronunciation Key 
A drug that temporarily depresses neuronal function, producing total or partial loss of sensation with or without the loss of consciousness.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
anesthetic [(an-is-thet-ik)]

A substance that causes loss of sensation or consciousness. With the aid of an anesthetic, people can undergo surgery without pain. (See general anesthetic and local anesthetic.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences for anaesthetics
Nonflammable gases such as halothane replaced flammable anaesthetics such as ether.
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