limbic system

 
Pronunciation: /ˈlɪmbɪk/

noun

  • a complex system of nerves and networks in the brain, involving several areas near the edge of the cortex concerned with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).

Origin:

late 19th century: limbic from French limbique, from Latin limbus 'edge'