The property of having two valences or affinities.

In a broader sense, the quality of being dual or having dual aspects.

द्वैतीय होने की गुणवत्ता या दोहरी विशेषता

English Usage: "The bivalency of the issue made the debate more complex."

Hindi Usage: "मामले की बाइवलेंसी ने बहस को और अधिक जटिल बना दिया।"