Definition of banana split noun from the Oxford Advanced Learner's Dictionary

 

banana split

 noun
noun
BrE
 
; NAmE
 
Sweets and desserts
 
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a cold dessert (= a sweet dish) made from a banana that is cut in half along its length and filled with ice cream, nuts, etc. See related entries: Sweets and desserts
See the Oxford Advanced American Dictionary entry: banana split