Being, acting, or growing, under water in the sea; as, submarine navigators; submarine plants. Submarine armor, a waterproof dress of strong material, having a helmet into which air for breathing is pumped through a tube leading from above the surface to enable a diver to remain under water. -- Submarine cable. See Telegraph cable, under Telegraph. -- Submarine mine. See Torpedo, 2 (a).
A submarine plant or animal.
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