hydrazine
(noun) a colorless fuming corrosive liquid; a powerful reducing agent; used chiefly in rocket fuels
Source: WordNet® 3.1
hydrazine (countable and uncountable, plural hydrazines)
(inorganic compound, uncountable) A corrosive, fuming liquid, NH2-NH2, used as a rocket fuel.
(organic compound, countable) Any member of the class of organic compounds formally derived from NH2-NH2.
• diamidogen
Source: Wiktionary
Hy"dra*zine, n. Etym: [Hydr- + azo- + -ine.] (Chem.)
Definition: Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with a peculiar, irritating odor. As a base it forms distinct salts. Called also diamide, amidogen, (or more properly diamidogen), etc.
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”
Decaffeinated coffee is not caffeine-free. Studies from the National Institute of Health (US) have shown that virtually all decaf coffee types contain caffeine. A 236-ml (8-oz) cup of decaf coffee contains up to 7 mg of caffeine, whereas a regular cup provided 70-140 mg.