Meaning of nipple

nip•ple

Pronunciation: (nip'ul), [key]
— n.
  1. a protuberance of the mamma or breast where, in the female, the milk ducts discharge; teat.
  2. something resembling it, as the mouthpiece of a nursing bottle or pacifier.
  3. a short piece of pipe with threads on each end, used for joining valves.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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