# tidal

/ˈtaɪdəɫ/ (US) · /tˈaɪdəl/ (UK) · CEFR B2 · Adjective

Source: https://englishreference.com/word/tidal
Updated: 2026-05-02

## Definition

connected to the regular rise and fall of the ocean. You use this to describe things that change or move because of the sea's natural rhythm.

For teachers: relating to, caused by, or having tides. Describes phenomena influenced by the periodic rise and fall of sea levels resulting from gravitational forces.

## Examples

- The tidal waves crash against the shore every morning.
- The small island is only accessible by foot during low tide because of the dangerous tidal currents.
- Ecologists are studying how the tidal fluctuations in the estuary affect the breeding patterns of local bird species that rely on the exposed mudflats for food.

## Usage notes

- Typically precedes the noun it modifies; often used in technical or geographical contexts.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.