ଅର୍ଥ : The condition of being folded inward or sheathed.
ସମକକ୍ଷ : introversion
ଅର୍ଥ : The folding in of an outer layer so as to form a pocket in the surface.
ଉଦାହରଣ :
The invagination of the blastula.
ସମକକ୍ଷ : infolding, introversion, intussusception