The Centimeter-Gram-Second (CGS) system is a metric unit system used for measuring physical quantities. It defines length in centimeters, mass in grams, and time in seconds. This system is often used in scientific contexts, particularly in fields like physics and chemistry, where precise measurements are essential. The CGS system is part of the broader metric system, which includes other units like the meter, kilogram, and second. While the CGS system is less common today, it is still used in some scientific literature and applications, especially in theoretical physics and certain engineering disciplines.