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phenytoin

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noun phe·nyt·o·in \fə-ˈni-tə-wən\

Definition of phenytoin

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



Origin of phenytoin

diphenylhydantoin


First Known Use: 1941


Medical Dictionary

phenytoin

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noun phe·nyt·o·in \fə-ˈnit-ə-wən\

Medical Definition of phenytoin

  1. :  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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