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phenytoin

noun phe·nyt·o·in \ fə-ˈni-tə-wən \

Definition of phenytoin

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

Origin and Etymology of phenytoin

diphenylhydantoin

Medical Dictionary

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

Learn More about phenytoin

  1. Britannica.com: Encyclopedia article about phenytoin

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