rejuvenescent
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re·ju·ve·nes·cence
(rĭ-jo͞o′və-nĕs′əns)n.
A renewal of youthful appearance or character.
re·ju′ve·nes′cent adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.