<p><strong>Noun:</strong></p><ul><li>Apprehension; understanding or comprehension; mental grasp: quick on the uptake.</li><li>An act or instance of taking up; a lifting: the uptake of fertilizer by machines.</li><li>Also called take-up.</li><li>Machinery: a pipe or passage leading upward from below, as for conducting smoke or a current of air.</li><li>Physiology: absorption.</li></ul><p><strong>End of Response</strong></p>