<p><strong>Noun</strong></p><ul><li>A dancing, hopping, or leaping movement.</li><li>An abrupt movement or transition.</li><li>Geology: Intermittent, leaping movement of particles of sand or gravel, as from the force of wind or running water.</li><li>Biology: A sudden, drastic genetic mutation or series of mutations occurring between one generation and the next, especially one that generates a new species.</li></ul>