دو ظرفیتی (اسم)bivalence, bivalency, divanدووالانسی (اسم)bivalence, bivalencyدوبنیانی (اسم)bivalence, bivalency, divan
• state of having two valences, state of having a valence of two (chemistry); state of having a pair of homologous chromosomes (biology)
