broken wind vs animal disease

broken wind and animal disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
broken wind	Yes	No	No	No
animal disease	Yes	No	No	No

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

broken wind: a chronic emphysema of the horse that causes difficult expiration and heaving of the flanks
animal disease: a disease that typically does not affect human beings

broken wind (noun)	animal disease (noun)
a chronic emphysema of the horse that causes difficult expiration and heaving of the flanks	a disease that typically does not affect human beings