external oblique muscle vs musculus obliquus externus abdominis

external oblique muscle and musculus obliquus externus abdominis both are nouns.

Word	Noun	Adjective	Verb	Adverb
external oblique muscle	Yes	No	No	No
musculus obliquus externus abdominis	Yes	No	No	No

As nouns, external oblique muscle and musculus obliquus externus abdominis are synonyms defined as:

external oblique muscle and musculus obliquus externus abdominis: a diagonally arranged abdominal muscle on either side of the torso

Other synonyms of external oblique muscle include abdominal external oblique muscle, oblique.

external oblique muscle (noun)	musculus obliquus externus abdominis (noun)
a diagonally arranged abdominal muscle on either side of the torso	a diagonally arranged abdominal muscle on either side of the torso