Kelp (?), n. Formerly kilpe; of unknown origin.


The calcined ashes of seaweed, -- formerly much used in the manufacture of glass, now used in the manufacture of iodine.


2. Bot.

Any large blackish seaweed.

Laminaria is the common kelp of Great Britain; Macrocystis pyrifera and Nereocystis Lutkeana are the great kelps of the Pacific Ocean.

Kelp crab Zool., a California spider crab (Epialtus productus), found among seaweeds, which it resembles in color. -- Kelp salmon Zool., a serranoid food fish (Serranus clathratus) of California. See Cabrilla.


© Webster 1913.