Signals made by burning lights of different colors and used by vessels at sea, and in the life-saving service; -- named after their inventor. [ Webster 1913 Suppl. ]
n. [ Costa + Gr. &unr_;&unr_;&unr_;&unr_; to cut. ] An instrument (chisel or shears) to cut the ribs and open the thoracic cavity, in post-mortem examinations and dissections. Knight. [ 1913 Webster ]