Bible Dictionaries
Allantoin

Webster's Dictionary

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

Bibliography Information
Webster, Noah. Entry for 'Allantoin'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​a/allantoin.html. 1828.