bisammonium in English dictionary bisammonium Meanings and definitions of "bisammonium" (chemistry, in combination) Two ammonium ions or groups in a molecule noun (chemistry, in combination) Two ammonium ions or groups in a molecule more Grammar and declension of bisammonium bisammonium ( uncountable) bisammonium (uncountable) more Sample sentences with "bisammonium" Declension Stem Try again Authors