neurectomy vs ablation

neurectomy and ablation both are nouns.

Word	Noun	Adjective	Verb	Adverb
neurectomy	Yes	No	No	No
ablation	Yes	No	No	No

As nouns, ablation is a hypernym of neurectomy; that is, ablation is a word with a broader meaning than neurectomy:

Other hypernyms of neurectomy include cutting out, excision, extirpation.

neurectomy (noun)	ablation (noun)
surgical removal of all or part of a nerve	surgical removal of a body part or tissue
	the erosive process that reduces the size of glaciers