"jugular" in the noun sense
1. jugular vein, vena jugularis, jugular
veins in the neck that return blood from the head
2. jugular
a vital part that is vulnerable to attack
"he always goes for the jugular"
"jugular" in the adjective sense
1. jugular
relating to or located in the region of the neck or throat
"jugular vein"
Source: WordNet® (An amazing lexical database of English)
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