English

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

 

squadron

 noun
noun
BrE BrE//ˈskwɒdrən//
 
; NAmE NAmE//ˈskwɑːdrən//
 
[countable + singular or plural verb]
 
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a group of military aircraft or ships forming a section of a military force a bomber/fighter squadron Word Origin mid 16th cent. (originally denoting a group of soldiers in square formation): from Italian squadrone, from squadra ‘square’.
See the Oxford Advanced American Dictionary entry: squadron