peroneal vein vs vena

peroneal vein and vena both are nouns.

Word	Noun	Adjective	Verb	Adverb
peroneal vein	Yes	No	No	No
vena	Yes	No	No	No

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

peroneal vein: accompany the peroneal arteries; arising in the heel and running up the back of the leg to join the posterior tibial veins of the popliteal vein
vena: a blood vessel that carries blood from the capillaries toward the heart

Other hypernyms of peroneal vein include vein, venous blood vessel.

peroneal vein (noun)	vena (noun)
accompany the peroneal arteries; arising in the heel and running up the back of the leg to join the posterior tibial veins of the popliteal vein	a blood vessel that carries blood from the capillaries toward the heart