<p><strong>Noun:</strong></p><ul><li>Nautical: water thrown backward by the motion of oars, propellers, paddle wheels, etc.</li><li>Aeronautics: the portion of the wash of an aircraft that flows to the rear, usually created by the power plant.</li><li>a condition, usually undesirable, that continues long after the event which caused it.</li></ul><p><strong>Synonyms:</strong></p><ul><li>upshot</li><li>result</li><li>consequence</li><li>aftermath</li></ul><p><strong>Verb:</strong></p><ul><li>(used with object) to affect, as by hitting, rocking, or splashing, with a backwash: a powerful cutter backwashing the skiers.</li><li>to clean out (a clogged filter) by reversing the flow of fluid: Backwash the swimming pool's filters regularly.</li></ul><p><strong>End of Response</strong></p>