Any small projection or article in which there is an orifice for discharging a fluid, or for other purposes; as, the nipple of a nursing bottle; the nipple of a percussion lock, or that part on which the cap is put and through which the fire passes to the charge.
The hollow, cone-shaped tube screwed into the breech of a percussion firearm upon which the percussion cap is placed. When struck by the hammer, the flame from the percussion cap passes into the chamber to ignite the powder charge.
A hollow, cone-shaped part of a percussion firearm upon which a percussion cap or musket cap is placed. The hole in the nipple directs the flame or flash of the cap to the powder charge. Also called a Cone.