Headwater

Pronunciation: /ˈhɛˌdwɔːtər/

Headwater (noun)

  1. Small streams at the start of a river system, where water begins to flow and later forms larger rivers.
  2. The upper part of a river basin, including the streams and land where the river first collects water.

Examples

  • The headwater feeds the river all year.
  • Rain fills the headwater and starts the flow downstream.