Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun phenytoin
1 sense of phenytoin
Sense 1
diphenylhydantoin, phenytoin, Dilantin -- (an anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative)
=> hydantoin -- (any of a group of anticonvulsant drugs used in treating epilepsy)