lidocaine

noun
🔊/ˈlaɪdəkeɪn/
🔊/ˈlaɪdəkeɪn/
(also lignocaine)
[uncountable]
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  1. a substance used as a local anaesthetic, for example to stop people feeling pain when teeth are removed利多卡因(局部麻醉药)
    Word Origin1940s: from (acetani)lid(e) + -caine (from cocaine).