Micrometer (noun)

1. A device used for measuring very small distances or thicknesses.
2. A unit of length in the metric system, equal to one millionth of a meter.

Origin:

The word 'micrometer' is derived from the greek word 'mikros' meaning 'small' and 'metron' meaning 'measure.'.

Examples:

1. The micrometer is a precise tool used in many scientific experiments.
2. The thickness of the metal sheet was measured using a micrometer.
3. The accuracy of the micrometer is often limited by its resolution.
4. In electronics, micrometers are commonly used to measure the thickness of thin films.
5. Micrometers are an essential tool in many manufacturing and engineering applications.