# seabed

/ˈsiˌbɛd/ (US) · /sˈiːbɛd/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/seabed
Updated: 2026-05-18

## Definition

the floor of the ocean or a large lake. It is usually covered with sand, mud, or rocks.

For teachers: the floor of a body of water, typically the ocean or a large lake. Often used in geological or environmental contexts to describe the physical substrate.

## Examples

- The divers explored the seabed for ancient shipwrecks.
- Scientists are studying the seabed to understand how rising temperatures affect deep-sea ecosystems.
- The discovery of methane hydrates trapped in the seabed has sparked significant interest in potential energy sources, though their extraction remains a complex environmental challenge.

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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.