The calcined ashes of seaweed, formerly used in glass and iodine manufacture.
Any of several large brown algae seaweeds (order Laminariales).
To gather kelp.
Solids separated from suspension in a liquid.
A residual semi-solid material left from industrial, water treatment, or wastewater treatment processes.
A mass of small pieces of ice on the surface of a body of water.
sludge metal
A sediment of accumulated minerals in a steam boiler.
To slop or drip slowly.
To slump or slouch.