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

 

mealworm

 noun
noun
BrE BrE//ˈmiːlwɜːm//
 
; NAmE NAmE//ˈmiːlwɜːrm//
 
 
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a larva which is used to feed pet birds
See the Oxford Advanced American Dictionary entry: mealworm