lidocaine

noun

li·​do·​caine ˈlī-də-ˌkān 

: 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

Any anesthetic product used on the toad must contain 20% benzocaine or lidocaine. — Amaia Gavica, Miami Herald, 23 June 2026

But the solution caused Peñaloza Cabrera to suffer lidocaine toxicity, a condition that occurs when excessive amounts of the anesthetic enter the bloodstream, causing seizures, irregular heart rhythm, respiratory failure and — as in the victim’s case — cardiac arrest. — Colin Mixson, New York Daily News, 18 June 2026

Morphine, fentanyl and lidocaine couldn’t soothe all her pain. — Sarah Blaskovich, Dallas Morning News, 4 Feb. 2026

Jackson Browne's son, Ethan, died from the effects of fentanyl, methamphetamine, and lidocaine. — Wesley Stenzel, Entertainment Weekly, 14 Jan. 2026

Word History

Etymology

acetanilid + -o- + -caine

First Known Use

circa 1949, in the meaning defined above

Rhymes for lidocaine

• aeroplane
• appertain
• ascertain
• capitaine
• cassegrain
• cellophane
• chatelaine
• counterpane
• entertain
• halothane
• hurricane
• hyperplane

Medical Definition

lidocaine

noun

li·​do·​caine ˈlīd-ə-ˌkān 

: a crystalline compound C₁₄H₂₂N₂O used as a local anesthetic often in the form of its hydrochloride C₁₄H₂₂N₂O·HCl

called also lignocaine

see xylocaine