"A tattoo is a form of body modification made by inserting ink, dyes, and/or pigments, either indelible or temporary, into the dermis layer of the skin ...
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to form a design. The art of making tattoos is known as tattooing.
Tattoos comprise three broad categories: purely decorative (with no specific meaning), symbolic (with a specific meaning pertinent to the wearer), and pictorial (a depiction of a specific person or item). In addition, tattoos can be used for identification such as ear tattoos on livestock as a form of branding." - (en.wikipedia.org 18.02.2022)