Glossary is usually defined as an alphabetical list of technical terms in some specialized field of knowledge. This knowledge base glossary provides a collection of knowledge base documents that define many technical terms. These terms are arranged alphabetically, but you can quickly jump to a specific term by selecting its first letter from the index of the knowledge base glossary below.

One billionth of a meter (10-9). It is also known as a millimicron. It is used to measure the wavelengths of energy found in the electro-magnetic spectrum. Wavelengths of energy in the form of visible light measure from 400 – 700 nanometers.