jugular vein vs jugular

jugular vein and jugular both are nouns.

Word	Noun	Adjective	Verb	Adverb
jugular vein	Yes	No	No	No
jugular	Yes	Yes	No	No

As nouns, jugular vein and jugular are synonyms defined as:

jugular vein and jugular: veins in the neck that return blood from the head

Other synonyms of jugular vein include vena jugularis.

jugular vein (noun)	jugular (noun)
veins in the neck that return blood from the head	a vital part that is vulnerable to attack
	veins in the neck that return blood from the head

jugular vein (adjective)	jugular (adjective)
	relating to or located in the region of the neck or throat