jug·u·lar 
(jŭgyə-lər)
(jŭgyə-lər)adj.
Of, relating to, or located in the region of the neck or throat.
n.
1. A jugular vein.
2. The most vital part: a strategic attack aimed at the enemy's jugular.
[Late Latin iugulāris (vēna), jugular (vein), from Latin iugulum, collarbone, diminutive of iugum, yoke; see yeug- in the Appendix of Indo-European roots.]