the nipple is a form of:

Nipple



noun
1.
(point of a breast teat, the mouthpiece of a nursing bottle) nipple of the breast ចុងដោះ, nipple of a bottle ក្បាលដោះ, grease nipple កន្លែងបូមខ្លាញ់
2.
(វេជ្ជសាស្ត្រ) ក្បាលដោះ
3.
(វេជ្ជសាស្ត្រ) ចុងដោះ
ENGLISH MEANING
noun
1.
The protuberance through which milk is drawn from the breast or mamma; the mammilla; a teat; a pap.
2.
The orifice at which any animal liquid, as the oil from an oil bag, is discharged.
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.
4.
A pipe fitting, consisting of a short piece of pipe, usually provided with a screw thread at each end, for connecting two other fittings.