For marine purposes: A space, enclosed at the sides by walls and at each end by gates, by which a vessel can be floated up or down to a different level
Sabelatrans Shipping Global SSG(Specialized in Shipping/Transportation of Heavy Lift, RoRo & Project forwarding by Sea , Air & Land), Shipping Terms, Ajman, UAE 2013. http://www.sabelatrans.com/shipping_terms.htm, (Log - Brit) {1030}