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

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

n. 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.

n. 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.

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

n. 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."

beam   

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

Nelson    elsen    kelson    nelson   

cutwater    10-in    boiler-room    lava-like    manometer    sallet    dark-yellow    cherry-flavored    volta-electrometer    rock