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

 

flatworm

 noun
noun
BrE BrE//ˈflætwɜːm//
 
; NAmE NAmE//ˈflætwɜːrm//
 
Invertebrates
 
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a very simple worm with a flat body See related entries: Invertebrates
See the Oxford Advanced American Dictionary entry: flatworm