pneumonectomy vs extirpation

pneumonectomy and extirpation both are nouns.

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

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

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

pneumonectomy (noun)	extirpation (noun)
surgical removal of a lung (usually to treat lung cancer)	surgical removal of a body part or tissue
	the act of pulling up or out; uprooting; cutting off from existence