phenytoin

noun

phe·nyt·o·in | \ fə-ˈni-tə-wən

How to pronounce phenytoin (audio)

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Definition of phenytoin

: a crystalline anticonvulsant compound C₁₅H₁₂N₂O₂ used in the form of its sodium salt in the treatment of epilepsy

— called also diphenylhydantoin

Examples of phenytoin in a Sentence

Recent Examples on the Web In the effluent from the Morgantown wastewater plant, the USGS team found high concentrations of three drugs in addition to phenytoin. — Natasha Gilbert, STAT, "‘Dump it down the drain’: How contaminants from prescription-drug factories pollute waterways," 11 Dec. 2019 Three years later, Snyder, whose team tested both raw and drinking-water samples at 18 U.S. sites, added ibuprofen, meprobamate (an antianxiety medication), and phenytoin (another antiseizure drug), along with other pharmaceuticals, to the list. — Rachael Moeller Gorman, Good Housekeeping, "Is Your Tap Water Safe?," 15 Aug. 2012

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'phenytoin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Dictionary Entries near phenytoin

phenylthiocarbamide

pheochromocytoma

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Cite this Entry

“Phenytoin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phenytoin. Accessed 4 Mar. 2021.

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phenytoin

noun

phe·nyt·o·in | \ fə-ˈnit-ə-wən

\

Medical Definition of phenytoin

: an anticonvulsant used often in the form of its sodium salt C₁₅H₁₁N₂NaO₂ to prevent or treat seizures

— called also diphenylhydantoin

— see dilantin

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