- the adoption of feminine mannerisms, clothing, etc., by a male.
Origin of eonism
1925–30; after the Chevalier d'Éon (died 1810), Frenchman who posed as a woman
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- psychiatry the adoption of female dress and behaviour by a maleSee also transvestite
C19: named after Charles Éon de Beaumont (died 1810), French transvestite