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

headwaters

noun
 
/ˈhedwɔːtəz/
 
/ˈhedwɔːtərz/
[plural]
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  1. streams forming the source of a riverTopics Geographyc2
See headwaters in the Oxford Advanced American Dictionary
previously
adverb
 
 
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