concentration
Language: English
Part of speech: noun
Pronunciation: ipa: /ˌkɒn.sənˈtɹeɪ.ʃən/
ipa: /ˌkɑn.sənˈtɹeɪ.ʃən/
rhymes: -eɪʃən
Forms: form: concentrations
Etymology: From New Latin concentrātiō (“(1550) action or an act of coming together at a single place; (1659) extraction or separation of one or more of the metals present in an alloy”). Compare French concentration, Spanish concentración, Italian concentrazione (last quarter of 16th century). Equivalent to concentrate + -ion.
Senses: examples: text: 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.
ref: 1972, Leo A. Orleans, Every Fifth Child: The Population of China, Stanford, CA: Stanford University Press, →ISBN, →LCCN, →OCLC, →OL, page 117:
glosses: The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
glosses: 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.
glosses: The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
The act, process or product of reducing the volume of a liquid, as by evaporation.
glosses: The act, process or ability of concentrating; the process of becoming concentrated, or the state of being concentrated.
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.
glosses: A field or course of study on which one focuses, especially as a student in a college or university.
examples: text: 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.
ref: 1972, Leo A. Orleans, Every Fifth Child: The Population of China, Stanford, CA: Stanford University Press, →ISBN, →LCCN, →OCLC, →OL, page 117:
text: 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.
ref: 2013 July-August, Philip J. Bushnell, “Solvents, Ethanol, Car Crashes & Tolerance”, in American Scientist:
glosses: The proportion of a substance in a whole.
topics: chemistry
natural-sciences
physical-sciences
glosses: The proportion of a substance in a whole.
The amount of solute in a solution measured in suitable units (e.g., parts per million (ppm))
glosses: The matching game pelmanism.
Coordinate terms: sense: course of study
word: major
sense: course of study
word: minor
Derived terms: bioconcentration
concentrational
concentration camp
concentration cell
concentration effect
concentration table
concentration time
concentration-time curve
critical micelle concentration
cryoconcentration
deconcentration
haemoconcentration
hemoconcentration
hyperconcentration
leukoconcentration
mascon
minimum inhibitory concentration
molal concentration
molar concentration
n-firm concentration ratio
nonconcentration
overconcentration
preconcentration
radioconcentration
reconcentration
superconcentration
time of concentration
Related terms: salinity