floating-out [f.vbl. phrase to float out(see float v. 11).] The action of floating a ship out of dock. Also attrib. 1896Daily News 18 Sept. 6/7 The floating-out of dock of the battleship Illustrious at Chatham Dockyard.1899Ibid. 29 June 5/5 Her floating-out weight was 1,500 tons.