Use insulin in a sentence. a protein hormone secreted by the islets of Langerhans, in the pancreas, which helps the body use sugar and other carbohydrates. a preparation extracted from the pancreas of sheep, oxen, etc. and used hypodermically in the treatment of diabetes mellitus.
Decorative chrome plating on a motorcycle. Chrome plating (less commonly chromium plating), often referred to simply as chrome, is a technique of electroplating a thin layer of chromium onto a metal or plastic object.The chromed layer can be decorative, provide corrosion resistance, ease cleaning procedures, or increase surface hardness. typical hexavalent chromium plating process is: (1) activation bath, (2) chromium bath, (3) rinse, and (4) rinse. The activation bath is typically a tank of chromic acid with a reverse current run through it.
âNow letâs move on to the mystery of plating. Back in the 1920s, nickel was the plating material of choice for something bright and shiny, but then along came chrome. Chromeâs claim to fame was that you didnât have to clean it regularly to remove fingerprints or polish out oxidization. Because of that convenience, chrome replaced nickel as the preferred finish by the â30s.