English

Definition of trade winds noun from the Oxford Advanced Learner's Dictionary

 

trade winds

 noun
noun
BrE
 
; NAmE
 
[plural]
 
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strong winds that blow all the time towards the equator and then to the west Word Origin mid 17th cent.: from the phrase blow trade ‘blow steadily in the same direction’. Because of the importance of these winds to navigation, 18th-cent. etymologists mistakenly connected the word trade with “commerce”.
See the Oxford Advanced American Dictionary entry: trade winds