distributor housing vs housing

distributor housing and housing both are nouns.

Word	Noun	Adjective	Verb	Adverb
distributor housing	Yes	No	No	No
housing	Yes	No	No	No

As nouns, housing is a hypernym of distributor housing; that is, housing is a word with a broader meaning than distributor housing:

distributor housing: the housing that supports the distributor cam
housing: a protective cover designed to contain or support a mechanical component

distributor housing (noun)	housing (noun)
the housing that supports the distributor cam	structures collectively in which people are housed
	a protective cover designed to contain or support a mechanical component
	stable gear consisting of a decorated covering for a horse, especially (formerly) for a warhorse