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Centimeters are a unit of length in the metric system, which is widely used around the world. One centimeter is equal to one hundredth of a meter, or 0.01 meters. The term "centi" comes from the Latin word "centum," meaning one hundred. Centimeters are commonly used in everyday measurements, such as the height of a person, the length of a room, or the width of an object. They are also used in scientific and technical fields, where precision is crucial. The centimeter is abbreviated as "cm." In the United States, the centimeter is less commonly used than the inch, but it is still recognized and used in certain contexts, such as in the measurement of screen sizes for televisions and computer monitors. The centimeter is part of the International System of Units (SI), which is the modern form of the metric system. It is defined as the length of the path traveled by light in a vacuum during a time interval of 1/299,792,458 of a second.