Definition of agoraphobia noun from the Oxford Advanced Learner's Dictionary

 

agoraphobia

 noun
noun
BrE BrE//ˌæɡərəˈfəʊbiə//
 
; NAmE NAmE//ˌæɡərəˈfoʊbiə//
 
[uncountable](specialist)
 
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a fear of being in public places where there are many other people She had agoraphobia and never wanted to go out of the house. compare claustrophobia Word Origin late 19th cent.: from Greek agora ‘place of assembly, marketplace’ + -phobia (see phobia).
See the Oxford Advanced American Dictionary entry: agoraphobia