the branch of geology dealing with the rocks, sediments, and processes of the floors and margins of the oceans.
noun 1. a tarlike composition for coating the seams of a planked deck after caulking.
noun 1. . 2. . noun 1. insurance covering damage to or loss of ship, passengers, or cargo caused by the sea
noun 1. a vine, Cissus incisa, of the grape family, native to the southern U.S., having three leaflets or three-lobed leaves and black fruit, grown as a houseplant.
noun 1. a unit of 3 nautical miles (5.6 km).