<p><strong>Noun</strong></p><ul><li>The act of making someone young again or restoring them to youthful vigor: The area features luxurious resort hotels with spa facilities for complete relaxation and rejuvenation.</li><li>The act of making something new and fresh, or restoring it to a former better state: The governor’s legacy includes notable achievements in many areas, including the environment, public transit, and rejuvenation of the economy.</li><li>Physical Geography: The renewal of the activity, erosive power, etc., of a stream by uplift or by removal of a barrier in the stream bed: Recent tectonic activity along the Euphrates fault resulted in the rejuvenation of part of the Euphrates River.</li><li>The return of a region to a more youthful topography by the action of streams renewed in this way: The differential erosion and the presence of residual hills at different heights may be attributed to the effect of uplift and rejuvenation of the region in different periods.</li></ul>