It has also been used as a term for a hangover, with the sufferer's groans of discomfort being humorously likened to a wailing cat. It may refer to: 1  Worbey & Farrell, previously known as Katzenjammer, a British piano musical comedy duo.  Katzenjammer (band), a Norwegian pop/folk band.
Zinc (Zn) is one of the eight essential micronutrients. It is needed by plants in small amounts, but yet crucial to plant development. In plants, zinc is a key constituent of many enzymes and proteins. It plays an important role in a wide range of processes, such as growth hormone production and internode elongation.
Zinc is a metallic chemical element found in the earthâs environment. It is also known as spelter. It is used to remove impurities from water. It is used in batteries. It was discovered in Germany by Andreas Sigismund Marggraf, a German chemist in 1746. By heating calamine and carbon he isolated zinc.