Definition of evert in English:

evert

verb

[WITH OBJECT]Physiology Biology
  • Turn (a structure or organ) outward or inside out.

    ‘the characteristic facial appearance of full, often everted lips’
    • ‘Most Asteroidea are predators or scavengers, everting their stomach (called a cardiac stomach), which secretes digestive enzymes on their prey.’
    • ‘They feed by grasping the prey, then everting their stomach and secreting primary enzymes on the prey.’
    • ‘The cyst wall is then everted and approximated to the edge of the vestibular mucosa with interrupted 2-0 absorbable suture.’
    • ‘To facilitate patellar cartilage removal, the first assistant clamps the medial edges of the tendons above and below the patella and everts the tissue.’
    • ‘These nozzles could not be confused with ‘eversible gland openings,’ as described by Forsyth, or the obviously everted female spermatheca.’
    turn inside out
    View synonyms

Origin

Mid 16th century (in the sense upset, overthrow): from Latin evertere, from e- (variant of ex-) out + vertere to turn The current sense dates from the late 18th century.

Pronunciation:

evert

/əˈvərt/