celom vs cavum

celom and cavum both are nouns.

Word	Noun	Adjective	Verb	Adverb
celom	Yes	No	No	No
cavum	Yes	No	No	No

As nouns, cavum is a hypernym of celom; that is, cavum is a word with a broader meaning than celom:

celom: a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity
cavum: (anatomy) a natural hollow or sinus within the body

Other hypernyms of celom include bodily cavity, cavity.

celom (noun)	cavum (noun)
a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity	(anatomy) a natural hollow or sinus within the body