headstream

Definitions of headstream
  1. noun
    a stream that forms the source of a river
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    examples:
    Blue Nile
    a headstream of the Nile; joins the White Nile at Khartoum to form the Nile
    White Nile
    a headstream of the Nile; joins the Blue Nile at Khartoum to form the Nile
    type of:
    stream, watercourse
    a natural body of running water flowing on or under the earth
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