allantoin

(redirected from glyoxyldiureide)
Also found in: Dictionary, Encyclopedia.

allantoin

 [ah-lan´to-in]
a crystalline substance from allantoic fluid and fetal urine, also produced synthetically; used as an astringent and keratolytic, often as a component in multi-ingredient dermatological medications.

al·lan·to·in

(ă-lan'tō-in),
A substance present in allantoic fluid, fetal urine, and elsewhere; also an oxidation product of uric acid and the end product of purine metabolism in animals other than humans and the other primates.

allantoin

(ə-lăn′tō-ĭn)
n.
An oxidation product of uric acid, C4H6N4O3, found in the urine of most mammals (except humans and related primates) as the metabolic end product of purine oxidation, and also found in some plants. It is also produced synthetically and is often used in cosmetics and pharmaceuticals.

allantoin

A drug used externally in the treatment of ACNE, usually in combination with other drugs.

allantoin

the heterocyclic end product of purine catabolism in some reptiles, and mammals other than primates.