vena digitalis vs vena

vena digitalis and vena both are nouns.

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

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

vena digitalis: one of the veins serving the fingers or toes
vena: a blood vessel that carries blood from the capillaries toward the heart

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

vena digitalis (noun)	vena (noun)
one of the veins serving the fingers or toes	a blood vessel that carries blood from the capillaries toward the heart