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

gastric band

noun
 
/ˌɡæstrɪk ˈbænd/
 
/ˌɡæstrɪk ˈbænd/
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  1. a device made of silicone that is put around the upper section 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
trait
noun
 
 
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