Definition of evaginate in English:

evaginate

verb

Physiology Biology
  • (with reference to a tubular or pouch-shaped organ or structure) turn or be turned inside out.

    [no object] ‘the sacs evaginate and come to lie externally’
    turn inside out
    View synonyms

Origin

Mid 17th century: from Latin evaginat- unsheathed, from the verb evaginare, from e- (variant of ex-) out of + vagina sheath.

Pronunciation:

evaginate

/ɪˈvadʒɪneɪt/