vena scrotalis vs vena

vena scrotalis and vena both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena scrotalis	Yes	No	No	No
vena	Yes	No	No	No

As nouns, vena is a hypernym of vena scrotalis; that is, vena is a word with a broader meaning than vena scrotalis:

vena scrotalis: veins passing from the scrotum to the pudendal veins
vena: a blood vessel that carries blood from the capillaries toward the heart

Other hypernyms of vena scrotalis include vein, venous blood vessel.

vena scrotalis (noun)	vena (noun)
veins passing from the scrotum to the pudendal veins	a blood vessel that carries blood from the capillaries toward the heart