<p><strong>noun</strong></p><ul><li>Physics. the property or characteristic that produces unequal physical effects at different points in a body or system, as a magnet or storage battery.</li><li>the positive or negative state in which a body reacts to a magnetic, electric, or other field.</li><li>the presence or manifestation of two opposite or contrasting principles or tendencies.</li><li>Linguistics. (of words, phrases, or sentences) positive or negative character.</li></ul>