adenoidectomy vs ablation

adenoidectomy and ablation both are nouns.

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

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

adenoidectomy: surgical removal of the adenoids; commonly performed along with tonsillectomy
ablation: surgical removal of a body part or tissue

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

adenoidectomy (noun)	ablation (noun)
surgical removal of the adenoids; commonly performed along with tonsillectomy	surgical removal of a body part or tissue
	the erosive process that reduces the size of glaciers