clitoral vein vs vena

clitoral vein and vena both are nouns.

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

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

clitoral vein: veins that serve the clitoris
vena: a blood vessel that carries blood from the capillaries toward the heart

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

clitoral vein (noun)	vena (noun)
veins that serve the clitoris	a blood vessel that carries blood from the capillaries toward the heart