At its simplest, biotechnology is technology based on biology - biotechnology harnesses cellular and biomolecular processes to develop technologies and products that help improve our lives and the health of our planet.
In macroeconomics, the focus is on the demand and supply of all goods and services produced by an economy. Accordingly, the demand for all individual goods and services is also combined and referred to as aggregate demand.
Definition of aggregate. 1  1 : a mass or body of units or parts somewhat loosely associated with one another Froth is an aggregate of tiny bubbles. 2  2 : the whole sum or amount : sum total spent an aggregate of 10 million dollars in advertising during the past three years.