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evaginate Line breaks: eva¦gin|ate
Pronunciation: /ɪˈvadʒɪneɪt/

Definition of evaginate in English:


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


Pronunciation: /ɪvadʒɪˈneɪʃ(ə)n/
Example sentences
  • The adenohypophysis, or anterior pituitary, is derived from an evagination of oral ectoderm of the dorsal median region of the stomodeum.
  • The normal pancreas is derived from several evaginations originating from the wall of the primitive duodenum.
  • On the other hand, rectal prolapse is a full-thickness evagination of the rectal wall outside the anal opening.


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

Definition of evaginate in:
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