vena radialis vs vena

vena radialis and vena both are nouns.

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

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

vena radialis: superficial veins ascending the radial side of the forearm; combines with the ulnar veins to form the brachial vein
vena: a blood vessel that carries blood from the capillaries toward the heart

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

vena radialis (noun)	vena (noun)
superficial veins ascending the radial side of the forearm; combines with the ulnar veins to form the brachial vein	a blood vessel that carries blood from the capillaries toward the heart