submersible

submersible — adjective

1. designed or built to work or travel underwater without being damaged by water pr

1.adjectiveB2
Definition

designed or built to work or travel underwater without being damaged by water pressure

Example

A submersible camera filmed the fish swimming near the ocean floor.

attributive use: submersible + equipment noun

The crew tested the submersible lights before the night dive began.

Common collocations
  • submersible camera
  • submersible vehicle
  • submersible drone
  • submersible light
  • submersible pump
Synonyms
  • underwater

    broader and less technical — an underwater camera may or may not be pressure-rated

  • waterproof

    not equivalent — waterproof only prevents water entry; submersible implies active function at depth

Usage Note

Typically used attributively before a noun (submersible camera, submersible vehicle). Differs from waterproof in that a submersible item is engineered for prolonged or deep underwater operation.

submersible — noun

Word family

  • submerge
    verbB2
  • submersion
    nounC1
  • submergence
    nounC1

Synonym discussion

Sense: noun/1

A submersible is a small watercraft designed for underwater travel, typically tethered to a surface ship. A submarine is much larger, operates independently for long periods, and is usually military. An ROV (remotely operated vehicle) is an uncrewed submersible connected by a cable, used for inspection or sampling. An underwater drone is a more casual term for a small, often autonomous submersible. For example: 'The ROV surveyed the pipeline while the submarine remained at port.'

submersible ↗submarine ↗ROVunderwater drone

Etymology

LatinEnglish

From Latin 'submergere' (to plunge under), formed from 'sub-' (under) + 'mergere' (to dip, plunge). The English adjective appeared in the mid-1800s, and the noun form referring to underwater vessels followed in the early 1900s.