Dictionary

headwater

noun head·wa·ter \-ˌw-tər, -ˌwä-\

Definition of HEADWATER

:  the source of a stream —usually used in plural
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Examples of HEADWATER

  1. <the first exploration of the Missouri River from its mouth to its headwaters was made by Meriwether Lewis and William Clark in the early 1800s>

First Known Use of HEADWATER

1787

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