muscle vs smooth muscle

muscle and smooth muscle both are nouns.

Word	Noun	Adjective	Verb	Adverb
muscle	Yes	No	Yes	No
smooth muscle	Yes	No	No	No

As nouns, smooth muscle is a hyponym of muscle; that is, smooth muscle is a word with a more specific, narrower meaning than muscle:

muscle: one of the contractile organs of the body
smooth muscle: a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)

As nouns, smooth muscle is a hyponym of muscle; that is, smooth muscle is a word with a more specific, narrower meaning than muscle:

muscle: animal tissue consisting predominantly of contractile cells
smooth muscle: muscle tissue that does not appear striated under the microscope; has the form of thin layers or sheets

Other hyponyms of muscle include striated muscle tissue, cardiac muscle, heart muscle.

muscle (noun)	smooth muscle (noun)
possessing muscular strength	a muscle that contracts without conscious control and found in walls of internal organs such as stomach and intestine and bladder and blood vessels (excluding the heart)
authority or power or force (especially when used in a coercive way)	muscle tissue that does not appear striated under the microscope; has the form of thin layers or sheets
one of the contractile organs of the body
animal tissue consisting predominantly of contractile cells
a bully employed as a thug or bodyguard

muscle (verb)	smooth muscle (verb)
make one's way by force