noun🔗ShareAmmonium, cation ammoniumThe univalent NH4+ cation, derived by the protonation of ammonia"The chemistry teacher explained that ammonium, formed when ammonia gains a proton, is a key ingredient in many fertilizers. "Le professeur de chimie a expliqué que l'ammonium, formé lorsque l'ammoniac gagne un proton, est un ingrédient clé de nombreux engrais.chemistrycompoundsubstancescienceChat with AIVocabulary GamePractice Reading
noun🔗ShareAmmonium(especially in combination) Any similar cation formed by replacing one or more hydrogen atoms with alkyl or aryl radicals"The laboratory experiment involved testing the reaction of ammonium chloride with a strong base to release ammonia gas. "L'expérience de laboratoire impliquait de tester la réaction du chlorure d'ammonium avec une base forte pour libérer du gaz ammoniac.compoundchemistrysubstancescienceChat with AIVocabulary GamePractice Reading