Množina: concentrations
ETYM Cf. French concentration.
In chemistry, the amount of a substance (solute) present in a specified amount of a solution. Either amount may be specified as a mass or a volume (liquids only). Common units used are moles per cubic decimeter, grams per cubic decimeter, grams per 100 cubic centimeters, and grams per 100 grams.
The term also refers to the process of increasing the concentration of a solution by removing some of the substance (solvent) in which the solute is dissolved. In a concentrated solution, the solute is present in large quantities. Concentrated brine is around 30% sodium chloride in water; concentrated caustic soda (caustic liquor) is around 40% sodium hydroxide; and concentrated sulfuric acid is 98% acid.
1. Complete attention; intense mental effort; SYN. engrossment, absorption.
2. Increase in density.
3. Strengthening the concentration (as of a solute in a mixture) by removing extraneous material.
4. The spatial property of being crowded together; SYN. density, denseness, compactness.
5. The strength of a solution; number of molecules of a substance in a given volume (expressed as moles/cubic meter).
6. Bringing together military forces.
absorption · assiduity · assiduousness · compactness · denseness · density · engrossment · immersion · tightness
concelebration · concentrate · concentrated · concentration · concentration camp · concentric · concentrical
1. L'action de concentrer, ou l'état de ce qui est concentré.
2. Grande attention de la pensée.
accumulation · agglomération · amas · application · assemblage · association · attention · cartel · centralisation · condensation · condensé · consortium · contention · convergence · densité · diminution · effort · entente · focalisation · fusion · groupement · intégration · konzern · méditation · rassemblement · recherche · recueillement · regroupement · réflexion · réunion · tas · tension · trust
Množina: concentration camps
A penal camp where political prisoners or prisoners of war are confined (usually under harsh conditions); SYN. stockade.
Prison camp for civilians in wartime or under totalitarian rule. The first concentration camps were devised by the British during the Second Boer War in South Africa 1899 for the detention of Afrikaner women and children (with the subsequent deaths of more than 20,000 people). A system of hundreds of concentration camps was developed by the Nazis in Germany and occupied Europe (193345) to imprison Jews and political and ideological opponents after Hitler became chancellor Jan 1933. The most infamous camps in World War II were the extermination camps of Auschwitz, Belsen, Dachau, Maidanek, Sobibor, and Treblinka. The total number of people who died at the camps exceeded 6 million, and some inmates were subjected to medical experimentation before being killed.
At Oswiecim (Auschwitz-Birkenau), a vast camp complex was created for imprisonment and slave labor as well as the extermination of over 4 million people in gas chambers or by other means. In addition to Jews, the victims included Gypsies, homosexuals, and other misfits or unwanted people. At Maidanek, about 1.5 million people were exterminated, cremated, and their ashes used as fertilizer. Many camp officials and others responsible were tried after 1945 for war crimes, and executed or imprisoned. Foremost was Adolf Eichmann, the architect of the extermination system, who was tried and executed by the state of Israel 1961.
concelebration · concentrate · concentrated · concentration · concentration camp · concentric · concentrical