Acquisition of feminine characteristics, either physiologically as part of female maturation, or pathologically by individuals of either sex. [L. ef-femino, pp. -atus, to make feminine, fr. ex, out, + femina, woman]
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ef·fem·i·na·tion ə-.fem-ə-'nā-shən n the taking on by a man of the mental characteristics (as passivity) traditionally associated with women
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ef·fem·i·na·tion (ə-fem″ĭ-naґshən) feminization (def. 2).Medical dictionary. 2011.