1. A method of cell formation in which the entire protoplasm of an old cell escapes by rupture of the cell wall, and then develops a new cell wall 
2. A renewing of youth; the state of being or growing young again

Derived forms: rejuvenescences

• Raptores
• raptorial
• raptorial bird
• rapture
• rapturous
• rapturously
• raptus
• raptus hemorrhagicus
• rara avis
• rare
• rare bird
• rare earth
• rare-earth element
• rare-roasted
• rarebit
• raree-show
• rarefaction
• rarefied
• rarefy
• rarely
• rareness
• rarified
• rarify
• raring
• rariora