castration vs emasculation

castration and emasculation both are nouns.

Word	Noun	Adjective	Verb	Adverb
castration	Yes	No	No	No
emasculation	Yes	No	No	No

As nouns, castration and emasculation are synonyms defined as:

castration and emasculation: neutering a male animal by removing the testicles

castration (noun)	emasculation (noun)
neutering a male animal by removing the testicles	neutering a male animal by removing the testicles
surgical removal of the testes or ovaries (usually to inhibit hormone secretion in cases of breast cancer in women or prostate cancer in men)	loss of power and masculinity
the deletion of objectionable parts from a literary work