head of navigation

noun

The farthest point above the mouth of a river that can be navigated by ships. This term can be somewhat subjective on many streams, as this point may vary greatly with the size of the ship being contemplated for navigation. On others it is quite objective, being caused by a waterfall, dam or lock.

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Meanings

noun
  1. nauticalThe farthest point above the mouth of a river that can be navigated by ships. This term can be somewhat subjective on many streams, as this point may vary greatly with the size of the ship being contemplated for navigation. On others it is quite objective, being caused by a waterfall, dam or lock.
Cite this entry
APA

head of navigation. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/head%20of%20navigation

MLA

“head of navigation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/head%20of%20navigation. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “head of navigation,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/head%20of%20navigation.

Source: head of navigation on Wiktionary, CC BY-SA 4.0.