Nanometern

Nanometern is the grammatical plural form of the German noun Nanometer in the dative plural, and is sometimes encountered in scientific writing. In everyday English and in most other languages, the unit is referred to as nanometer (plural nanometers) or nanometre (plural nanometres).

The nanometer is a unit of length in the metric system equal to 10^-9 meters. It is commonly used to describe wavelengths of visible and near-visible light, as well as the dimensions of atoms, molecules, nanostructures, and thin films. Because of its small scale, measurements at the nanometer typically rely on specialized instrumentation such as electron microscopes, atomic force microscopes, or scanning tunneling microscopes, and on metrology methods calibrated against primary standards.

In German technical writing, the term Nanometer is standard; Nanometern is not a separate unit but a grammatical inflection that appears in sentences that require the dative plural, such as mit Nanometern Größenangaben or bei Abständen von einigen Nanometern, depending on sentence structure.

The concept remains the same across languages: 1 nm equals one-billionth of a meter; 1,000,000 nm equals 1 millimeter. The nanoscale is central to nanotechnology, electronics, and materials science, where precise measurement and control at the nanometer level enable a wide range of applications.