lidocaine

noun

li·​do·​caine ˈlī-də-ˌkān How to pronounce lidocaine (audio)
: a crystalline compound C14H22N2O that is used in the form of its hydrochloride as a local anesthetic and as an antiarrhythmic agent

Examples of lidocaine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Ether gave way to cocaine, Novocain, lidocaine, articaine, and laughing gas for the lucky few. Burkhard Bilger, New Yorker, 28 July 2025 Both men had a concoction of drugs in their systems, including fentanyl, lidocaine and cocaine, according to the city medical examiner’s office. Matt Lavietes, NBC news, 21 May 2025 She was allegedly administered lidocaine injections, which are commonly used as a local anesthetic to numb specific areas, per the Mayo Clinic. Charna Flam, People.com, 3 Apr. 2025 Your doctor can apply a numbing cream, gel, or spray (made with lidocaine, prilocaine, or both) to your cervix or surrounding areas to basically help desensitize things. Erica Sloan, SELF, 21 May 2025 See All Example Sentences for lidocaine

Word History

Etymology

acetanilid + -o- + -caine

First Known Use

circa 1949, in the meaning defined above

Time Traveler
The first known use of lidocaine was circa 1949

Browse Nearby Words

Cite this Entry

“Lidocaine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lidocaine. Accessed 4 Aug. 2025.

Medical Definition

lidocaine

noun
li·​do·​caine ˈlīd-ə-ˌkān How to pronounce lidocaine (audio)
: a crystalline compound C14H22N2O used as a local anesthetic often in the form of its hydrochloride C14H22N2O·HCl

called also lignocaine

see xylocaine

More from Merriam-Webster on lidocaine

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!