hematocoele vs puffiness

hematocoele and puffiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
hematocoele	Yes	No	No	No
puffiness	Yes	No	No	No

As nouns, puffiness is a hypernym of hematocoele; that is, puffiness is a word with a broader meaning than hematocoele:

hematocoele: swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis)
puffiness: an abnormal protuberance or localized enlargement

Other hypernyms of hematocoele include lump, swelling.

hematocoele (noun)	puffiness (noun)
swelling caused by blood collecting in a body cavity (especially a swelling of the membrane covering the testis)	lack of elegance as a consequence of being pompous and puffed up with vanity
	an abnormal protuberance or localized enlargement