aerosol bomb vs dispenser

aerosol bomb and dispenser both are nouns.

Word	Noun	Adjective	Verb	Adverb
aerosol bomb	Yes	No	No	No
dispenser	Yes	No	No	No

As nouns, dispenser is a hypernym of aerosol bomb; that is, dispenser is a word with a broader meaning than aerosol bomb:

aerosol bomb: a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas)
dispenser: a container so designed that the contents can be used in prescribed amounts

aerosol bomb (noun)	dispenser (noun)
a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas)	a container so designed that the contents can be used in prescribed amounts
a bomb that uses a fuel-air explosive	a person who dispenses