pigboat pigboat /ˈpɪgboʊt/
noun
-
A submersible warship usually armed with torpedoes
(
pigboat
, sub
[Informal] , U-boat
, submarine
)
a submersible warship usually armed with torpedoes
The USS Nautilus was the world's first operational nuclear-powered submarine
The USS Nautilus was the world's first operational nuclear-powered submarine