(definition) by Webster 1913 Wed Dec 22 1999 at 0:14:15

Hy*dan"to*in (?), n. [Hydrogen + allantion.] Chem.

A derivative of urea, C3H4N2O2, obtained from allantion, as a white, crystalline substance, with a sweetish taste; -- called also glycolyl urea.

 

© Webster 1913.

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