millstream

noun
mill·​stream | \ ˈmil-ˌstrēm How to pronounce millstream (audio) \

Definition of millstream

1 : a stream whose flow is utilized to run a mill
2 : millrace

First Known Use of millstream

before the 12th century, in the meaning defined at sense 1

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The first known use of millstream was before the 12th century

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