From The Collaborative International Dictionary of English v.0.48 :
Eversion \E*ver"sion\, n. [L. eversio: cf. F. ['e]version.]
1. The act of eversing; destruction. --Jer. Taylor.
[1913 Webster]
2. The state of being turned back or outward; as, eversion of
eyelids; ectropium.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
eversion
n 1: the position of being turned outward; "the eversion of the
foot"
2: the act of turning inside out [syn: inversion, eversion,
everting]