a. Being, acting, or growing, under water in the sea;
Submarine armor,
Submarine cable.
Submarine mine.
n. A submarine plant or animal. [ 1913 Webster ]
n.
n. A large sandwich on an elongated roll, usually incompletely cut into two halves, filed with various cold cuts, meatballs, lettuce, cheese, tomatoes, olives, etc., and spiced variously, and often having oil or other dressing applied; called also