chart datum

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|nautical}} the [[level]] below which [[depth]]s are indicated and above which [[height]]s of the [[tide]]s are expressed; usually mean level of low water at a [[spring tide]]

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.