COPPERED, OR COPPER-BOTTOMED. Sheathed with thin sheets of copper, which prevents the teredo eating into the planks, or shell and weed accumulating on the surface, whereby a ship is retarded in her sailing. COPPER-FASTENED. The bolts and other metal work in the bottom of ships, made of copper instead of iron, so that the vessel may afterwards be coppered without danger of its corroding the heads of the bolts by galvanic action, as ensues when copper and iron are in contact with sea-water. COPPER-NAILS. These are chiefly used in boat-building, and for plank nails in the vicinity of the binnacle, as iron affects the compass-needle. They are not to be confounded with _composition nails_, which are cast. (_See_ ROOF, OR ROVE and CLINCH.) COPPERS. The ship's boilers for cooking; the name is generally used, even where the apparatus may be made of iron. COQUILLAGE. Shell-fish in general. It applies to anchorages where oysters abound, or where fish are plentiful, and shell-fish for bait easily obtainable. It is specially a term belonging to French and Spanish fishermen. CORAB. A sort of boat, otherwise called _coracle_. CORACLE. An ancient British truckle or boat, constructed of wicker-work, and still in use amongst Welsh fishermen and on the Irish lakes. It is covered by skins, oil-cloth, &c., which are removed when out of use; it is of an oval form; contains one man, who, on reaching the shore, shoulders his coracle, deposits it in safety, and covers it with dried rushes or heather. The Arctic _baidar_ is of similar construction. It is probably of the like primitive fabric with the _cymba sutiles_ of Herodotus. CORACORA. _See_ KOROCORA. CORAL. A name applied to the hard calcareous support or skeleton of many species of marine zoophytes. The coral-producing animals abound chiefly in tropical seas, sometimes forming, by the aggregated growth of countless generations, reefs, barriers, and islands of vast extent. The "red coral" (_Corallium rubrum_) of the Mediterranean is highly prized for ornamental purposes. CORALAN. A small open boat for the Mediterranean coral fishery. CORAL-BAND. _See_ SAND AND CORAL BANK or ISLET. CORBEILLE [Fr. basket]. Miner's basket; small gabion used temporarily for shelter to riflemen, and placed on the parapet, either to fire through, or for protection from a force placed on a higher level. CORBILLARD [Fr.] A large boat of transport. CORD. Small rope; that of an inch or less in circumference. CORD OR CHURD OF WOOD; as firewood. A statute stack is 8 feet long, 4 feet broad, and 4 feet high. CORDAGE. A general term for the running-rigging of a ship, as also for rope of any size which is kept in reserve, and for all stuff to make ropes.--_Cable-laid cordage._ Ropes, the three strands of which are composed of three other strands, as are cables and cablets. (_See_ ROPE.) CORDILLA. The coarse German hemp, otherwise called _torse_. CORDLIE. A name for the tunny fish.