society > armed hostility > hostilities at sea > naval weapons and equipment > 			[noun]		 > ship's guns collectively > anti-submarine gun (3)		
an anti-submarine gun with two firing arms for discharging depth charges.
One or other of various species of cephalopods belonging to the family Loliginidæ, Teuthididæ, or Sepiidæ… Also with capital initial. A…
transferred and figurative. A type of anti-submarine mortar. Also attributive or as adj.