(n.) A barge or lighter, used on the Type for carrying coal from   Newcastle; also, a barge load of coal, twenty-one tons, four cwt. 
                        
                    
                    
                        
                        
                            (n.) A brewer's cooling vat; a keelfat. 
                        
                    
                    
                        
                        
                            (n.) A longitudinal timber, or series of timbers scarfed together,   extending from stem to stern along the bottom of a vessel. It is the   principal timber of the vessel, and, by means of the ribs attached on   each side, supports the vessel's frame. In an iron vessel, a   combination of plates supplies the place of the keel of a wooden ship.   See Illust. of Keelson. 
                        
                    
                    
                        
                        
                            (n.) A projecting ridge along the middle of a flat or curved   surface. 
                        
                    
                    
                        
                        
                            (n.) Fig.: The whole ship. 
                        
                    
                    
                        
                        
                            (n.) The two lowest petals of the corolla of a papilionaceous   flower, united and inclosing the stamens and pistil; a carina. See   Carina. 
                        
                    
                    
                        
                        
                            (v. i.) To traverse with a keel; to navigate. 
                        
                    
                    
                        
                        
                            (v. i.) To turn up the keel; to show the bottom. 
                        
                    
                    
                        
                        
                            (v. t. & i.) To cool; to skim or stir.