Definitions for "Derived demand"
The demand for a product's transportation is derived from the product's demand at some location.
Demand that arises or is defined indirectly from some other demand or underlying behavior; e.g., demand for foreign currency is derived from demand for foreign goods, bonds, etc., while demand for import of a homogeneous good is derived from domestic demand and supply.
The demand for a factor of production, which is derived from the demand for the goods and services it is used to produce. (p. 387)