Definition of gastric band noun from the Oxford Advanced Learner's Dictionary

 

gastric band

 noun
noun
BrE BrE//ˌɡæstrɪk ˈbænd//
 
; NAmE NAmE//ˌɡæstrɪk ˈbænd//
 
 
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a device made of silicone that is put around the top of a person’s stomach to help them lose weight by reducing the amount of food that they are able to eat He’s had a gastric band fitted to help him lose weight. a gastric band operation gastric band surgery