teat

/tiหt/
noun
  1. 1

    The projection of a mammary gland from which, on female mammals, milk is secreted.

  2. 2

    Something resembling a teat, such as a small protuberance or nozzle.

  3. 3

    An artificial nipple used for bottle-feeding infants.

Source: https://en.wiktionary.org/wiki/teat