pricker \prick"er\, n.
   1. one who, or that which, pricks; a pointed instrument; a
      sharp point; a prickle.
      1913 webster

   2. one who spurs forward; a light horseman.
      1913 webster

            the prickers, who rode foremost, . . . halted. --sir
                                                  w. scott.
      1913 webster

   3. a priming wire; a priming needle, -- used in blasting and
      gunnery. --knight.
      1913 webster

   4. naut. a small marline spike having generally a wooden
      handle, -- used in sailmaking. --r. h. dana, ir.
      1913 webster

pricker
     n 1: a sharp-pointed tip on a stem or leaf syn: spine, thorn,
           prickle, sticker
     2: an awl for making small holes for brads or small screws
        syn: bradawl
see also:
spine thorn prickle sticker bradawl