The direction of attention to a specific object.
The proportion of a substance in a whole.
The act, process or product of reducing the volume of a liquid, as by evaporation.
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.
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.
The tendency to focus one's attention on one specific idea or viewpoint, to the exclusion of everything else.
A restricted field of vision as the result of looking through some type of object or a medical condition.