urinal vs plumbing fixture

urinal and plumbing fixture both are nouns.

Word	Noun	Adjective	Verb	Adverb
urinal	Yes	No	No	No
plumbing fixture	Yes	No	No	No

As nouns, plumbing fixture is a hypernym of urinal; that is, plumbing fixture is a word with a broader meaning than urinal:

urinal: a plumbing fixture (usually attached to the wall) used by men to urinate
plumbing fixture: a fixture for the distribution and use of water in a building

urinal (noun)	plumbing fixture (noun)
a plumbing fixture (usually attached to the wall) used by men to urinate	a fixture for the distribution and use of water in a building