emasculation vs castration

emasculation and castration both are nouns.

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

As nouns, emasculation and castration are synonyms defined as:

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

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