spavin vs animal disease

spavin and animal disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
spavin	Yes	No	No	No
animal disease	Yes	No	No	No

As nouns, animal disease is a hypernym of spavin; that is, animal disease is a word with a broader meaning than spavin:

spavin (noun)	animal disease (noun)
a swelling of the hock joint of a horse; resulting in lameness	a disease that typically does not affect human beings