Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • transitive verb To restore to youthful vigor or appearance; make young again.
  • transitive verb To restore to an original or new condition.
  • transitive verb To stimulate (a stream) to renewed erosive activity, as by uplift of the land.
  • transitive verb To develop youthful topographic features in (a previously leveled area).

from The Century Dictionary.

  • To restore the appearance, powers, or feelings of youth to; make as if young again; renew; refresh.
  • Of a stream, to increase its gradient, and with this, its velocity and erosive power, so that its effectiveness and apparent youth are renewed. This result is produced by the uplifting of a region which has been notably reduced by the erosion of the streams which continue to occupy it.
  • Of a region, to again impress the characters of youthful topography upon (it) when it is well advanced in its erosion cycle. This effect is dependent upon rejuvenation of the streams.

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb To render young again.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To render young again.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb return to life; get or give new life or energy
  • verb become young again
  • verb cause (a stream or river) to erode, as by an uplift of the land
  • verb develop youthful topographical features
  • verb make younger or more youthful

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[re– + Latin iuvenis, young; see yeu- in Indo-European roots + –ate.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From re- ("again") + Latin iuvenis ("young").

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