proenzyme, zymogen
(noun) any of a group of compounds that are inactive precursors of enzymes and require some change (such as the hydrolysis of a fragment that masks an active enzyme) to become active
Source: WordNet® 3.1
zymogen (plural zymogens)
(biochemistry) A proenzyme, or enzyme precursor, which requires a biochemical change (i.e. hydrolysis) to become an active form of the enzyme.
Source: Wiktionary
Zym"o*gen, n. Etym: [Zyme + -gen.] (Physiol. Chem.)
Definition: A mother substance, or antecedent, of an enzyme or chemical ferment; -- applied to such substances as, not being themselves actual ferments, may by internal changes give rise to a ferment. The pancreas contains but little ready-made ferment, though there is present in it a body, zymogen, which gives birth to the ferment. Foster.
Source: Webster’s Unabridged Dictionary 1913 Edition
12 December 2024
(noun) contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse
According to Guinness World Records, the largest iced coffee is 14,228.1 liters and was created by Caffé Bene (South Korea), in Yangju, South Korea, on 17 July 2014. They poured iced black Americano on the giant cup that measured 3.3 meters tall and 2.62 meters wide.
