What is the term for one-millionth of a standard meter?

The term for one-millionth of a standard meter is "micrometer." A micrometer is a unit of length in the metric system, represented by the Greek letter "μ" and equivalent to (10^{-6}) meters. It's commonly used in fields that require precise measurements, such as engineering and manufacturing.

To provide some context, a millimeter is one-thousandth of a meter, a centimeter is one-hundredth of a meter, and a decimeter is one-tenth of a meter. Therefore, these terms refer to larger quantities compared to a micrometer, which explains why they do not fit the definition of one-millionth of a meter. Understanding these units is crucial in applications ranging from machining to scientific research, where accurate measurements down to the micrometer scale are often necessary.