eversion

noun

ever·​sion i-ˈvər-zhən 

-shən

1

: the act of turning inside out : the state of being turned inside out

eversion of the bladder

2

: the condition (as of the foot) of being turned or rotated outward

eversible

i-ˈvər-sə-bəl 

adjective

Examples of eversion in a Sentence

Recent Examples on the Web

This behavior is often triggered by the stress of capture, especially in hook and line fisheries, where the hook itself may act as a stimulus for eversion. —Melissa Cristina Márquez, Forbes, 2 Mar. 2024

For years, scientists have observed stomach eversion in elasmobranchs and pelagic fishes, especially when they are captured in hook and line fisheries. —Melissa Cristina Márquez, Forbes, 2 Mar. 2024

In contrast, the eversion technique used in the new study has no such limit on size. —IEEE Spectrum, 16 May 2023

In theory, eversion could help deploy a grid that could cover the entire surface of the brain, the researchers say. —IEEE Spectrum, 16 May 2023

And there’s people doing other things, there’s people working on the proof of sphere eversion. —Quanta Magazine, 29 June 2022

Made from thin polyethylene, the robot expands from its tip by eversion. —Annalee Newitz, Ars Technica, 20 July 2017

Word History

First Known Use

1567, in the meaning defined at sense 1

Medical Definition

eversion

noun

ever·​sion i-ˈvər-zhən, -shən 

1

: the act of turning inside out : the state of being turned inside out

eversion of the eyelid

eversion of the bladder

2

: the condition (as of the foot) of being turned or rotated outward compare inversion sense 1b

eversible

-ˈvər-sə-bəl 

adjective