Definition of economy class syndrome noun from the Oxford Advanced Learner's Dictionary

 

economy class syndrome

 noun
noun
BrE
 
; NAmE
 
[uncountable] Plane travel
 
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the fact of a person suffering from deep vein thrombosis after they have travelled on a plane. This condition is thought to be more common among people who travel in the cheapest seats because they do not have space to move their legs much. See related entries: Plane travel
See the Oxford Advanced American Dictionary entry: economy class syndrome