evagination
noun
evag·i·na·tion i-ˌva-jə-ˈnā-shən 
1
: an act or instance of everting
2
: a product of eversion : outgrowth
Word History
Etymology
Late Latin evagination-, evaginatio, act of unsheathing, from Latin evaginare to unsheathe, from e- + vagina sheath
First Known Use
circa 1676, in the meaning defined at sense 1
Medical Definition
evagination
noun
evag·i·na·tion i-ˌvaj-ə-ˈnā-shən
1
: a process of turning outward or inside out
evagination of a plasma membrane
2
: a part or structure that is produced by evagination