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

 

icicle

 noun
noun
BrE BrE//ˈaɪsɪkl//
 
; NAmE NAmE//ˈaɪsɪkl//
 
Snow and ice
 
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a pointed piece of ice that is formed when water freezes as it falls down from something such as a roof Wordfinderavalanche, blizzard, drift, flurry, hail, icicle, sleet, slush, snow, thaw See related entries: Snow and ice Word Origin Middle English: from ice + dialect ickle ‘icicle’ (from Old English gicel).
See the Oxford Advanced American Dictionary entry: icicle