Minisub

noun, slang

noun, slang ·Uncommon ·College level

Definitions

Noun
  1. 1
    A minisubmarine. informal

    "The minisub, said Erik Hasselman, U-Boat Worx’s head of sales and marketing, is ideal for stowing on a yacht, but for safety reasons can dive only to about 160 feet, where there is still surface light."

  2. 2
    submersible vessel for one or two persons; for naval operations or underwater exploration wordnet

Synonyms

All synonyms
cruiserminisubmarinevessel

Example

More examples

"The minisub, said Erik Hasselman, U-Boat Worx’s head of sales and marketing, is ideal for stowing on a yacht, but for safety reasons can dive only to about 160 feet, where there is still surface light."

Etymology

From mini- + sub.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.