The act or process of removing the dress of ore and of reducing the valuable part to smaller compass, as by currents of air or water.
The proportion of a substance in a whole.
The act, process or product of reducing the volume of a liquid, as by evaporation.
The direction of attention to a specific object.
A field or course of study on which one focuses, especially as a student in a college or university.
The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm))
The matching game pelmanism.
A typological classification of stone tools, associated with a technocomplex.
The sector of the economy consisting of large-scale enterprises.
The tendency to work persistently. Diligence.
Businesses that produce goods as opposed to services.
Businesses of the same type, considered as a whole. Trade.
Automated production of material goods.