Crossword solverSynonyms for hydantoin7 crossword answers for “hydantoin” (9), sorted by letter count.How many letters?All781911311411721818 letters 1dilantin9 letters 1phenytoin13 letters 1antiepileptic14 letters 1anticonvulsant17 letters 2antiepileptic drug(13,4)diphenylhydantoin18 letters 1anticonvulsant drug(14,4)