"unsex" in the verb sense
1. unsex
deprive of sex or sexual powers
2. unsex
remove the qualities typical of one's sex
"She unsexed herself"
3. sterilize, sterilise, desex, unsex, desexualize, desexualise, fix
make infertile
"in some countries, people with genetically transmissible disabilites are sterilized"
Source: WordNet® (An amazing lexical database of English)
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