noun. A timber or girder fastened above and parallel to the keel of a ship or boat for additional strength.

noun. A line of jointed timbers in a ship laid on the middle of the floor-timbers over the keel, fastened with long bolts and clinched, thus binding the floor-timbers to the keel; in iron ships, a combination of plates corresponding to the keelson-timber of a wooden vessel. See cut under keel.

noun. In iron ship-building, a longitudinal reinforcement of plates and bars in the interior of the vessel above the framing in the bottom.

noun. A piece of timber in a ship laid on the middle of the floor timbers over the keel, and binding the floor timbers to the keel; in iron vessels, a structure of plates, situated like the keelson of a timber ship.

noun. a similar structure lying athwart the main keelson, to support the engines and boilers.

noun. A longitudinal beam fastened on top of the keel of a vessel for strength and stiffness.

noun. a longitudinal beam connected to the keel of ship to strengthen it

"Before we recovered it we had nearly killed ourselves with exhaustion, and we certainly had strained the sloop in every part from keelson to truck."

engine-keelson  false keelson  intercostal keelson  middle-line keelson  rider keelson  

beam  

Nelson  elsen  kelson  nelson  

10-in  Colorado  boiler-room  cherry-flavored  cistus