What does "pricker" mean?

Pricker: One who spurs forward; a light horseman. The prickers, who rode foremost, . . . halted. Sir W. Scott.

Additional senses

  1. 2.A priming wire; a priming needle, -- used in blasting and gunnery. Knight.
  2. 3.(Naut.) A small marline spike having generally a wooden handle, -- used in sailmaking. R. H. Dana, Ir.

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