hydantoin
noun
hy·dan·to·in
hī-ˈdan-tə-wən 
1
: a crystalline weakly acidic imidazole derivative C3H4N2O2 with a sweetish taste that is found in beet juice and used in organic synthesis
2
: a derivative of hydantoin (as phenytoin)
Cite this Entry
“Hydantoin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/hydantoin. Accessed 3 Nov. 2025.
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