# submersible

/səbˈmɝsɪbəɫ/ (US) · /səbmˈɜːsəbəl/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/submersible
Updated: 2026-05-26

## Definition

a small boat or vehicle that can travel underwater. It is usually used for research or to explore the deep ocean.

For teachers: a small, self-propelled vehicle capable of operating underwater. Often used for deep-sea exploration or scientific research.

## Examples

- The scientists used a submersible to study the ocean floor.
- The research team spent three days inside the submersible, collecting samples from the deep-sea vents.
- While large submarines are designed for military or long-range transport, a submersible is typically a smaller, more maneuverable craft intended for specialized underwater observation and data collection.

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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.