musculus intercostalis vs intercostal muscle

musculus intercostalis and intercostal muscle both are nouns.

Word	Noun	Adjective	Verb	Adverb
musculus intercostalis	Yes	No	No	No
intercostal muscle	Yes	No	No	No

As nouns, musculus intercostalis and intercostal muscle are synonyms defined as:

musculus intercostalis and intercostal muscle: muscles between the ribs; they contract during inspiration

Other synonyms of musculus intercostalis include intercostal.

musculus intercostalis (noun)	intercostal muscle (noun)
muscles between the ribs; they contract during inspiration	muscles between the ribs; they contract during inspiration