What is the meaning of Kelp?

Any of several large brown algae seaweeds (order Laminariales).

The calcined ashes of seaweed, formerly used in glass and iodine manufacture.

To gather kelp.

A hook or crook by which a pot is hung over a fire.

A sheath.

kelp (Laminariales order algae)

kelp

alternative form of quelpo

Source: wiktionary.org