<p><strong>Noun</strong></p><ul><li>something that incites to action or exertion or quickens action, feeling, thought, etc.: The approval of others is a potent stimulus.</li><li>Synonyms: provocation, motive, enticement, incitement</li><li>Antonyms: discouragement</li><li>Physiology, Medicine/Medical: something that excites an organism or part to functional activity.</li><li>Synonyms: stimulant</li></ul><p><strong>End of Response</strong></p>