The quality or state of having different or opposite polarities, especially in physics and chemistry.
From Greek 'hetero-' (different) + Latin 'polaris' (relating to poles) + '-ity' (condition or quality). This technical noun emerged from 19th-century chemistry.
Heteropolarity is why your magnet sticks to the fridge—the north and south poles have opposite polarities, and that difference creates the force that holds things together.
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