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Definition of limbic system noun from the Oxford Advanced American Dictionary

 

limbic system

 noun
noun
NAmE//ˈlɪmbɪk ˌsɪstəm//
 
(biology)
 
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a system of nerves in the brain involving several different areas, concerned with basic emotions such as fear and anger and basic needs such as the need to eat and to have sex
See the Oxford Advanced Learner's Dictionary entry: limbic system