arteria iliolumbalis vs iliolumbar artery

arteria iliolumbalis and iliolumbar artery both are nouns.

Word	Noun	Adjective	Verb	Adverb
arteria iliolumbalis	Yes	No	No	No
iliolumbar artery	Yes	No	No	No

As nouns, arteria iliolumbalis and iliolumbar artery are synonyms defined as:

arteria iliolumbalis and iliolumbar artery: an artery that originates in the internal iliac artery and supplies the pelvic muscles and bones

arteria iliolumbalis (noun)	iliolumbar artery (noun)
an artery that originates in the internal iliac artery and supplies the pelvic muscles and bones	an artery that originates in the internal iliac artery and supplies the pelvic muscles and bones