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pyridinium

noun
pyr·​i·​din·​i·​um | \ ˌpirəˈdinēəm\
plural -s

Definition of pyridinium

: a univalent ion [C5H5NH]+ or radical C5H6N that is analogous to ammonium and is derived from pyridine

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History and Etymology for pyridinium

New Latin, from International Scientific Vocabulary pyridine + New Latin -ium

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