Definition of lidocaine in English:


Syllabification: li·do·caine
Pronunciation: /ˈlīdəˌkān


Medicine , chiefly North American
  • A synthetic compound used as a local anesthetic, e.g., for dental surgery, and in treating abnormal heart rhythms.
    • An aromatic amide; chemical formula: C14H22N2O
    More example sentences
    • Two days after admission, the lidocaine and erythromycin were discontinued and a transvenous pacemaker was positioned in the right ventricular apex.
    • An injectable solution of 1 percent lidocaine or 1 percent procaine is usually used.
    • The surgeon, therefore, suggested that the nurse add epinephrine to the plain lidocaine rather than waiting for the medication to be ordered and arrive from the pharmacy.


1940s: from (acetani)lid(e) + -caine (from cocaine).

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