concentration

Definitions

1. The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated. The direction of attention to a specific object. 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
2. The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
   uncountable, usually
3. The direction of attention to a specific object
4. The direction of attention to a specific object.
   uncountable, usually
5. The act, process or product of reducing the volume of a liquid, as by evaporation
6. The act, process or product of reducing the volume of a liquid, as by evaporation.
   uncountable, usually
7. 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
8. 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.
   uncountable, usually
9. A field or course of study on which one focuses, especially as a student in a college or university
10. A field or course of study on which one focuses, especially as a student in a college or university.
    uncountable, usually
11. The proportion of a substance in a whole.
    uncountable, usually
12. The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm))
    physical, uncountable, usually
13. The matching game pelmanism.
    uncountable, usually

Equivalents

Examples

“The Koreans Almost all the Koreans in China live⟳ in the north-eastern provinces. The greatest concentration is found in an area of approximately 1,200 square miles in Kirin Province, an area which is part of the Yen-pien Korean Autonomous Chou.”

“Surprisingly, this analysis revealed that acute exposure to solvent vapors at concentrations below those associated with long-term effects appears to increase⟳ the risk⟳ of a fatal automobile accident. Furthermore, this increase⟳ in risk⟳ is comparable to the risk⟳ of death from leukemia after long-term exposure to benzene, another solvent, which has the well-known property of causing this type⟳ of cancer.”

CEFR level