Meanings
noundiphenylhydantoin (countable and uncountable, plural diphenylhydantoins)
plural diphenylhydantoins
- countableuncountablephenytoin
Synonyms & antonyms
nounan anticonvulsant drug (trade name Dilantin) used to treat epilepsy and that is not a sedative
Similar
phenytoinDilantin
Broader
Also see
Synonym sets from Open English WordNet, CC BY 4.0.
Origin
From di- (“2”) + phenyl + hydantoin.
Full word history & related roots →Cite this entry
APA
diphenylhydantoin. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/diphenylhydantoin
MLA
“diphenylhydantoin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/diphenylhydantoin. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “diphenylhydantoin,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/diphenylhydantoin.
Source: diphenylhydantoin on Wiktionary, CC BY-SA 4.0.