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SSstands for "semis," which means half in Latin, in theapothecary system.The apothecary systemis anarchaic systemof measurements used in pharmacy and medicine. In this system, units of measurement are based on the weight of a particular substance. The system is largelyobsoletetoday, having been replaced by the metric system in most countries. However, it is still used in some areas of medicine, particularly in the United States. In theapothecary system, weight is measured in grains, and the basic unit of volume is the minim. Other units include drams, ounces, and pounds. The abbreviation "SS" is used to indicate a half-dram, which is equivalent to approximately 1.8 grams or 30 grains.Learn more aboutapothecary systemhere:-brainly.com/question/2639630#SPJ11...