Английский разговорный словарь (основной) - keelson
Keelson
keelson
ˈkelsn n. (also kelson) a line of timberfastening a ship's floor-timbers to its keel. [ME kelswayn, perh. f. LG kielswin f. kiel KEEL(1) + (prob.) swin SWINE used as thename of a timber]