nippel

Nippel is a German term with multiple meanings, used in everyday language and technical contexts. It most commonly refers to the nipple of the breast. In formal medical or anatomical language, the term Brustwarze or Mamille is used, while Nippel remains a common, informal synonym.

In human anatomy, the nipple is a small, cylindrical projection located on the breast. It contains the opening of the milk ducts and, in females, plays a central role in lactation. The nipple is surrounded by the areola and is rich in sensory nerves, which contribute to tactile sensation. Its size, color, and prominence vary among individuals and can change with age, hormonal status, and physiological conditions such as pregnancy and puberty.

In mechanical and technical contexts, a Nippel is a short, hollow cylinder used to connect two fittings or sections of tubing or piping. Ends may be threaded (male) or designed to accept hoses. Nippels are found in plumbing, hydraulics, pneumatics, automotive systems, and other mechanical assemblies. They come in various materials, including brass, stainless steel, and plastics, and in different sizes and thread standards to suit specific applications. Variants include male-threaded nipples and smooth-barbed types for hose connections.

Other uses of the term can appear in industry-specific jargon, where Nippel may denote small projections or fixtures on machines, components, or connectors. The exact meaning depends on the field and context.

See also: Brustwarze, Mamille, pipe nipple, standard thread fittings, hose connector.