allantoin (plural allantoins)
(biochemistry) A diureide of glyoxylic acid, used in various pharmaceutical and cosmetic products; or a derivative of this compound
Source: Wiktionary
Al*lan"to*in, n. (Chem.)
Definition: A crystalline, transparent, colorless substance found in the allantoic liquid of the fetal calf; -- formerly called allantoic acid and amniotic acid.
Source: Webster’s Unabridged Dictionary 1913 Edition
1 June 2024
(noun) a night flight from which the passengers emerge with eyes red from lack of sleep; “he took the redeye in order to get home the next morning”
Espresso is both a coffee beverage and a brewing method that originated in Italy. When making an espresso, a small amount of nearly boiling water under pressure forces through finely-ground coffee beans. It has more caffeine per unit volume than most coffee beverages. Its smaller serving size will take three shots to equal a mug of standard brewed coffee.
