pancreatectomy vs extirpation

pancreatectomy and extirpation both are nouns.

Word	Noun	Adjective	Verb	Adverb
pancreatectomy	Yes	No	No	No
extirpation	Yes	No	No	No

As nouns, extirpation is a hypernym of pancreatectomy; that is, extirpation is a word with a broader meaning than pancreatectomy:

Other hypernyms of pancreatectomy include ablation, cutting out, excision.

pancreatectomy (noun)	extirpation (noun)
surgical removal of part or all of the pancreas	surgical removal of a body part or tissue
	the act of pulling up or out; uprooting; cutting off from existence