Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of allantoin is as below...

Allantoin :: Allantoin (n.) A crystalline, transparent, colorless substance found in the allantoic liquid of the fetal calf; -- formerly called allantoic acid and amniotic acid..

Diureide :: Diureide (n.) One of a series of complex nitrogenous substances regarded as containing two molecules of urea or their radicals, as uric acid or allantoin. Cf. Ureide..

Glycoluril :: Glycoluril (n.) A white, crystalline, nitrogenous substance, obtained by the reduction of allantoin..

Lantanuric :: Lantanuric (a.) Pertaining to, or designating, a nitrogenous organic acid of the uric acid group, obtained by the decomposition of allantoin, and usually called allanturic acid..

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