vena sublingualis vs vena

vena sublingualis and vena both are nouns.

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

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

vena sublingualis: a tributary of the lingual vein
vena: a blood vessel that carries blood from the capillaries toward the heart

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

vena sublingualis (noun)	vena (noun)
a tributary of the lingual vein	a blood vessel that carries blood from the capillaries toward the heart