(a) "Adequate ventilation" means a free and unrestricted circulation of fresh air throughout the tattoo studio and the expulsion of foul or stagnant air.
(b) "Minor" means any person under the age of eighteen years.
(c) "Tattoo" means to mark or color the skin by pricking in coloring matter so as to form indelible marks or figures or by the production of scars.
(d) "Tattoo studio" means any room or space where tattooing is practiced or where the business of tattooing or any part thereof is conducted.
(e) "Antibacterial solution" means any solution used to retard the growth of bacteria approved for application to human skin and includes all products so labeled.
(f) "Germicidal solution" means any solution which destroys germs and is so labeled.
(g) "Sterilization" means holding in an autoclave for twenty-five minutes at fifteen pounds pressure at a temperature of two hundred fifty degrees Fahrenheit or one hundred twenty-one degrees Celsius.