Share this entry

evert Line breaks: evert
Pronunciation: /ɪˈvəːt/

Definition of evert in English:


[with object] Biology & Physiology
Turn (a structure or organ) outwards or inside out: the brown hyena deposits chemicals by everting an anal pouch (as adjective everted) the characteristic facial appearance of full, often everted lips
More example sentences
  • They feed by grasping the prey, then everting their stomach and secreting primary enzymes on the prey.
  • These nozzles could not be confused with ‘eversible gland openings,’ as described by Forsyth, or the obviously everted female spermatheca.
  • Most Asteroidea are predators or scavengers, everting their stomach (called a cardiac stomach), which secretes digestive enzymes on their prey.


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.



Example sentences
  • These pores are interpreted as having housed eversible vesicles.
  • Abdominal segments 1-6 have 1-2 pairs of eversible vesicles.
  • Phylum Nemertea contains about 1,150 species of unsegmented worms that possess an eversible proboscis contained in a fluid-filled cavity or rhynchocoel.


Pronunciation: /ɪˈvəːʃ(ə)n/
Example sentences
  • The mechanism of injury is excessive dorsiflexion and eversion of the ankle joint with internal rotation of the tibia.
  • We hypothesized that eversion of a dorsiflexed ankle would be more likely to produce an LPT fracture than inversion of a dorsiflexed ankle.
  • In medial ankle sprains, the mechanism of injury is excessive eversion and dorsiflexion.

Definition of evert in:

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove ads and access premium resources

Word of the day coiffeur
Pronunciation: kwäˈfər
a hairdresser