1. emasculate, castrate -- (deprive of strength or vigor; "The Senate emasculated the law")
2. bowdlerize, bowdlerise, expurgate, castrate, shorten -- (edit by omitting or modifying parts considered indelicate; "bowdlerize a novel")
3. emasculate, castrate, demasculinize, demasculinise -- (remove the testicles of a male animal)
4. alter, neuter, spay, castrate -- (remove the ovaries of; "Is your cat spayed?")
castrate can be used as a noun
1. eunuch, castrate -- (a man who has been castrated and is incapable of reproduction; "eunuchs guarded the harem")
1.
The face withdrawn of its good and bad, a castrated face. - from Leaves of Grass by Walt Whitman
2.
caused to be castrated And maked each of them to be his thrall. - from The Canterbury Tales by Geoffrey Chaucer