'Solder nipple' definitions:

Definition of 'Solder nipple'

From: GCIDE

Nipple \Nip"ple\ (n[i^]p"p'l), n. [Formerly neble, a dim. of neb. See Neb, Nib.]
1. (Anat.) The protuberance through which milk is drawn from the breast or mamma; the mammilla; a teat; a pap. [1913 Webster]
2. The orifice at which any animal liquid, as the oil from an oil bag, is discharged. [R.] --Derham. [1913 Webster]
3. 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. [1913 Webster]
4. (Mech.) A pipe fitting, consisting of a short piece of pipe, usually provided with a screw thread at each end, for connecting two other fittings. [1913 Webster]
Solder nipple, a short pipe, usually of brass, one end of which is tapered and adapted for attachment to the end of a lead pipe by soldering. [1913 Webster]