|Definition:|| term designating a unit of measurement
Note 1 to entry: Names of derived units are special or compound. Rules for the formation of compound names are given in ISO 80000-1 and IEC 60027-1. For example, the derived unit of resistivity is the ohm metre, the derived unit of speed is the metre per second.
Note 2 to entry: Unit names are given in the various parts of ISO 80000, IEC 80000, and IEC 60027 and also in the brochure The International System of Units, published by the BIPM.