Definition of "rejuvenescence" [re•ju•ve•nes•cence]

• A renewal of youthful appearance or character. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The pollen cells are formed from mother cells by a process of cell division and subsequent setting free of the daughter cells or pollen cells by rejuvenescence, which is distinctly comparable with that of the formation of the microspores of Lycopodiaceæ, etc. The subsequent behavior of the pollen cell, its division and its fertilization of the germinal vesicle or oosphere, leave no doubt as to its analogy with the microspore of vascular cryptogams."
• "There are some mechanical aids in reading which may prove of great utility, and form a kind of rejuvenescence of our early studies."
• "Chaucer, upon which this kind of rejuvenescence has been bestowed by"