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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

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