embolectomy vs ablation

embolectomy and ablation both are nouns.

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

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

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

embolectomy (noun)	ablation (noun)
surgical removal of an embolus (usually from an artery)	surgical removal of a body part or tissue
	the erosive process that reduces the size of glaciers