- Relating to, or located near, the neck or throat.
- (humorous) Relating to juggling.
- (zoology, of fish) Having ventral fins attached under the throat.
- By extension, any critical vulnerability.
"It was vicious; he went for the jugular."
- Vein through the neck (or thorax) that returns blood from the head back towards the heart. Properly this is called the jugular vein.