pigboat

pig·boat

P0296400 (pĭg′bōt′)n. Slang A submarine.

pigboat

(ˈpɪɡˌbəʊt) n (Military) navy old-fashioned slang US a submarine

sub•ma•rine

(ˌsʌb məˈrin, ˈsʌb məˌrin)

n., adj., v. -rined, -rin•ing. n. 1. a vessel that can be submerged and navigated under water. 2. something situated or living under the surface of the sea, as a plant or animal. 3. Chiefly Northeastern and North Midland U.S. a hero sandwich. adj. 4. situated, occurring, operating, or living under the surface of the sea. 5. of, pertaining to, or carried on by a submarine. v.i. 6. to participate in the operating of a submarine. 7. to move or slide under something. [1640–50]

Thesaurus

Noun

1.

pigboat - a submersible warship usually armed with torpedoessubmarine, U-boat, subattack submarine - a military submarine designed and armed to attack enemy shippingauxiliary research submarine - a submarine for research purposesconning tower - a raised bridge on a submarine; often used for entering and exitingescape hatch - hatchway that provides a means of escape in an emergencyfleet ballistic missile submarine - a submarine carrying ballistic missilesnautilus, nuclear submarine, nuclear-powered submarine - a submarine that is propelled by nuclear powerperiscope - an optical instrument that provides a view of an otherwise obstructed fieldschnorchel, schnorkel, snorkel breather, breather, snorkel - air passage provided by a retractable device containing intake and exhaust pipes; permits a submarine to stay submerged for extended periods of timeasdic, echo sounder, sonar - a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee"submersible warship, submersible - a warship designed to operate under water