chart datum

noun

the level below which depths are indicated and above which heights of the tides are expressed; usually mean level of low water at a spring tide

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Meanings

noun
  1. nauticalthe level below which depths are indicated and above which heights of the tides are expressed; usually mean level of low water at a spring tide
Cite this entry
APA

chart datum. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/chart%20datum

MLA

“chart datum.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/chart%20datum. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “chart datum,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/chart%20datum.

Source: chart datum on Wiktionary, CC BY-SA 4.0.