waterline

wa*ter*line

noun

{bc}a line that marks the level of the surface of {a_link|water} on something: such as

{bc}the point on the hull of a ship or boat to which the water rises

{bc}a line marked on the outside of a ship that corresponds with the wateru0027s surface when the ship is afloat on an even keel under specified conditions of loading

the waterline

noun

{bc}the level that water reaches on the side of a ship

high-water mark

noun

{bc}highest point {bc}{sx|peak||}