sub·ma·rine 
(sŭbmə-rēn′, sŭb′mə-rēn)
(sŭbmə-rēn′, sŭb′mə-rēn)n.
1. Nautical A vessel that is capable of operating submerged.
2. A submarine sandwich.
3. Baseball A pitch that is thrown with a low sidearm or underhand motion.
adj.
1. Beneath the surface of the water; undersea.
2. Thrown with or characterized by a low sidearm or underhand motion: a submarine-style pitcher.
v. sub·ma·rined, sub·ma·rin·ing, sub·ma·rines
v.tr.
1. To attack by submarine, especially with torpedoes.
2. Sports To knock down with a blow to the legs.
3. Baseball To pitch (a ball) with a low sidearm or underhand motion.
v.intr.
1. To slide, drive, or be thrown under something: seats designed to prevent passengers from submarining under their seat belts in a crash.
2. To ride in or serve as a crew member of a submarine.
submarineUSS Virginia