U.S. Marine Corps Dictionary » X http://www.devildogcorps.com DevilDogCorps.com provides unofficial definition of terms used in the United States Marine Corps Thu, 07 Jul 2011 23:56:40 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 XO http://www.devildogcorps.com/xo/ http://www.devildogcorps.com/xo/#comments Wed, 30 Nov -0001 00:00:00 +0000 admin http://www.devildogcorps.com/XO Executive Officer. Second in command .

]]> http://www.devildogcorps.com/xo/feed/ 0 X-Ray http://www.devildogcorps.com/X-Ray/ http://www.devildogcorps.com/X-Ray/#comments Wed, 30 Nov -0001 00:00:00 +0000 admin http://www.devildogcorps.com/X-Ray A watertight condition on board ship in which certain hatches and portholes must remain closed to insure the integrity of the individual compartments.

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