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English definition of “ammonium”

ammonium

noun [U] uk   /əˈməʊ.ni.əm/ us    /-ˈmoʊ-/ specialized
a type of ion that is derived from ammonia and is contained in chemical compounds of it: ammonium chloride ammonium nitrateSpecific chemicals, chemical compounds and gasesSubstances and structures in the bodyTypes of chemical
(Definition of ammonium from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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