Q-ship(redirected from Q-boat)
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A decoy ship, especially an armed ship disguised as a merchant ship to entice submarines to surface so that they may be attacked with gunfire.
[Q, naval classification.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Nautical Terms) a merchant ship with concealed guns, used to decoy enemy ships into the range of its weapons
[named from q(uery)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014