Dictionary.com
definitions
  • synonyms

minisub

[min-ee-suhb]
noun
  1. a small submarine, holding only one or a few persons, used in naval operations, underwater exploration, or conducting underwater experiments.
Show More

Origin of minisub

First recorded in 1955–60; mini- + sub
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018