ovarian vein vs vena ovarica

ovarian vein and vena ovarica both are nouns.

Word	Noun	Adjective	Verb	Adverb
ovarian vein	Yes	No	No	No
vena ovarica	Yes	No	No	No

As nouns, ovarian vein and vena ovarica are synonyms defined as:

ovarian vein and vena ovarica: one of the veins that drain the ovaries; the right opens into the inferior vena cava; the left opens into the left renal vein

ovarian vein (noun)	vena ovarica (noun)
one of the veins that drain the ovaries; the right opens into the inferior vena cava; the left opens into the left renal vein	one of the veins that drain the ovaries; the right opens into the inferior vena cava; the left opens into the left renal vein