(n.) A derivative of urea, C3H4N2O2, obtained from allantion, as a white, crystalline substance, with a sweetish taste; -- called also glycolyl urea.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). hydantoin. Retrieved September 22, 2026, from http://smartdefine.org/hydantoin/definitions/2017964 |
| Chicago | Webster's. 2011. "hydantoin" http://smartdefine.org/hydantoin/definitions/2017964 (accessed September 22, 2026). |
| Harvard | Webster's 2011, hydantoin, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/hydantoin/definitions/2017964>. |
| MLA | Webster's. "hydantoin" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/hydantoin/definitions/2017964> |