allantoin
[ uh-lan-toh-in ]
/ əˈlæn toʊ ɪn /
noun Biochemistry, Pharmacology.
a white powder, C4H6N4O3, produced by oxidation of uric acid and the major excretory product of purine degradation in many vertebrates: used medicinally to heal skin ulcers and in lotions, lipsticks, etc., for its soothing effect.
Origin of allantoin
1835–45;
allanto(is) +
-in2; so named because it is found in the fluid of the allantois
Words nearby allantoin
British Dictionary definitions for allantoin
allantoin
/ (ˌælənˈtəʊɪn) /
noun
a substance derived from the secretions of snails and contained in some plants, used in skin care products and valued for its soothing properties
Word Origin for allantoin
C19: from
allantois
Medical definitions for allantoin
allantoin
[ ə-lăn′tō-ĭn ]
n.
A substance present in allantoic fluid, amniotic fluid, and fetal urine.
A crystalline oxidation product of uric acid produced in vertebrate purine metabolism and used medicinally to promote tissue growth.