Definition of "eversion"

Somewhere along the line, he managed to complete a kind of psychic eversion, a kind of total transformation of internal affairs.

1986, Harald William Fawkner, The ecstatic world of John Cowper Powys, page 76

When it comes to vacuum bubble eversion, a vacuum bubble also passes through asymmetrical stages in the eversion process

1999, Kip K. Sewell, The cosmic sphere, page 125

If there is no eversion of the lips, there may be no symptoms present.

1894, Charles Bingham Penrose with Albert Ernest Truby and William Alexander Newman Dorland, Syllabus of the Lectures on Gynecology, page 44

The remaining sprains are eversion injuries, in which the foot turns out and the ankle turns in.

1989 September 14, “HEALTH; Personal Health”, in New York Times