Meanings
nounallantoin (countable and uncountable, plural allantoins)
plural allantoins
- countableuncountablebiochemistryA diureide of glyoxylic acid, used in various pharmaceutical and cosmetic products; or a derivative of this compound
Origin
- Ancient Greekᾰ̓λλᾶς (ăllâs)
- Englishallanto-
- Englishallantoin
From allanto- + -in; this substance concentrates in the allantois during development in most mammals.
Full word history & related roots →Translations
Catalan al·lantoïna
- al·lantoïnaa diureide of glyoxylic acid
Chinese Mandarin 尿囊素
- 尿囊素 (niàonángsù)a diureide of glyoxylic acid
Finnish allantoiini
- allantoiinia diureide of glyoxylic acid
French allantoïne
- allantoïnea diureide of glyoxylic acid
Polish alantoina, allantoina
- alantoinaa diureide of glyoxylic acid
- allantoinaa diureide of glyoxylic acid
Portuguese alantoína
- alantoínaa diureide of glyoxylic acid
Spanish alantoína
- alantoínaa diureide of glyoxylic acid
Cite this entry
APA
allantoin. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/allantoin
MLA
“allantoin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/allantoin. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “allantoin,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/allantoin.
Source: allantoin on Wiktionary, CC BY-SA 4.0.