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M__________
Definitions
a toxic anticonvulsant drug (trade name Mesantoin) used in the treatment of epilepsy when less toxic anticonvulsants have been ineffective
Word origin
From me(thyl) + pheny(l) + -toin (“hydantoin derivative”).
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
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