Definition of bimetallic strip noun from the Oxford Advanced Learner's Dictionary

 

bimetallic strip

 noun
noun
BrE BrE//ˌbaɪmətælɪk ˈstrɪp//
 
; NAmE NAmE//ˌbaɪmətælɪk ˈstrɪp//
 
 
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a strip made of two different types of metal which bends when it is heated, used in thermostats
See the Oxford Advanced American Dictionary entry: bimetallic strip