Concentration

Pronunciation

• Rhymes: -eɪʃən

Origin

Full definition of concentration

Noun

1. The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
1. The direction of attention to a specific object.
2. The act, process or product of reducing the volume of a liquid, as by evaporation.
3. 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. A field or course of study on which one focuses, especially as a student in a college or university.
3. The proportion of a substance in a whole.
• 2013, Philip J. Bushnell, Solvents, Ethanol, Car Crashes & Tolerance, 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.
1. (chemistry) The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm))

Coordinate terms

• (course of study) major, minor