pricker > define

noun

• A small sharp-pointed tip resembling a spike on a stem or leaf.
  • synonyms: spine, thorn, prickle, sticker, spikelet
• An awl for making small holes for brads or small screws.
  • synonyms: bradawl

• (n.) One who spurs forward; a light horseman.
• (n.) One who or that which, pricks; a pointed instrument; a sharp point; a prickle.
• (n.) A priming wire; a priming needle, -- used in blasting and gunnery.
• (n.) A small marline spike having generally a wooden handle, -- used in sailmaking.