kelp /kɛlp/noun 4verb 1forms 3 noun4 •Any of several large brown algae seaweeds (especially of order Laminariales).Underneath the area demarcated by the buoys, Ms Puckett plants kelp—a type of seaweed—on long ropes that resemble washing lines. — 2021 •The calcined ashes of seaweed, formerly used in glass and iodine manufacture. •(dialect) A hook or crook by which a pot is hung over a fire. •(no longer used) A sheath. verb1 •To gather kelp. formskelped · kelping · kelps
