Definition of evaginate in English:

evaginate

verb

Biology Physiology
  • (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
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Origin

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

Pronunciation

evaginate

/ɪˈvadʒɪneɪt/