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anesthetic
an·es·thet·ic [ ànnəss théttik ] or an·aes·thet·ic [ ànnəss théttik ]


noun 
Definition:
 
substance that dulls pain: a substance that reduces sensitivity to pain and may cause unconsciousness, especially a drug used in medicine
[Mid-19th century. < Greek anaisthētos "without feeling" < aisthētos "capable of feeling" < aisthesthai "perceive"]

an·es·thet·ic adjective
an·es·thet·ic·al·ly adverb
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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