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diphenylhydantoin

[ dahy-fen-l-hahy-dan-toh-in, -feen- ]

noun

, Pharmacology.
  1. a white, slightly water-soluble powder, C 15 H 11 N 2 O 2 , used in the form of its sodium salt to prevent or arrest convulsions in epilepsy.

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Word History and Origins

Origin of diphenylhydantoin1

First recorded in 1935–40; diphenyl + hydantoin

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diphenylaminechlorarsinediphenylhydantoin sodium

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