Evagination

[ih-vaj-uh-neyt] /ɪˈvædʒ əˌneɪt/

verb (used with object), evaginated, evaginating.
1.
to turn inside out, or cause to protrude by eversion, as a tubular organ.
/ɪˈvædʒɪˌneɪt/
verb
1.
(transitive) (med) to turn (an organ or part) inside out; turn the outer surface of (an organ or part) back on itself
v.

“to turn (a tube) inside out,” 1650s, from Latin evaginatus, past participle of evaginare “to unsheathe,” from ex- (see ex-) + vagina (see vagina). Related: Evaginated; evaginating.

evagination e·vag·i·na·tion (ĭ-vāj’ə-nā’shən)
n.
The protrusion of some part or organ from its normal position.
e·vag’i·nate’ v.