derived quantity


Also found in: Medical.

derived quantity

[də′rīvd ′kwän·əd·ē]
(physics)
A physical quantity which, in a specified system of measurement, is defined by operations based on other physical quantities.
References in periodicals archive ?
An example is the joule J, the coherent derived SI unit for the derived quantity energy: "joule" is the special name for the "kilogram meter squared per second squared" and "J" is the special symbol for "[s.
A small number of base quantities that are assumed to be independent are chosen from the system of quantities such that any other quantity of the system, called a derived quantity, can be expressed as a function of the base quantities.