Online Google Dictionary

concentration 中文解釋 wordnet sense Collocation Usage
Noun
/ˌkänsənˈtrāSHən/,
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concentrations, plural;
  1. The action or power of focusing one's attention or mental effort
    • - frowning in concentration
    • - the worker needs total concentration
  2. Dealing with one particular thing above all others
    • - concentration on the needs of the young can mean that the elderly are forgotten
  3. A close gathering of people or things
    • - the largest concentration of Canada geese on earth
  4. The action of gathering together closely
    • - the concentration of power
  5. The relative amount of a given substance contained within a solution or in a particular volume of space; the amount of solute per unit volume of solution
    • - the gas can collect in dangerous concentrations
  6. The action of strengthening a solution by the removal of water or other diluting agent or by the selective accumulation of atoms or molecules


  1. the strength of a solution; number of molecules of a substance in a given volume
  2. the spatial property of being crowded together
  3. strengthening the concentration (as of a solute in a mixture) by removing diluting material
  4. increase in density
  5. complete attention; intense mental effort
  6. bringing together military forces
  7. In chemistry, concentration is the measure of how much of a given substance there is mixed with another substance. This can apply to any sort of chemical mixture, but most frequently the concept is limited to homogeneous solutions, where it refers to the amount of solute in the solvent.
  8. Concentration is a music album by artists Machines of Loving Grace which was released in 1993.
  9. This is a partial list of games played with domino tiles or similar equipment. The most typical domino games are layout games, i.e. games in which the players add matching tiles from their hand to a layout in the middle of the table. ...
  10. Concentration is a TV game show based on the children's memory game of the same name. It aired on and off from 1958–1991, hosted by various hosts and played in various ways. ...
  11. Concentration, also known as Memory, Pelmanism, Shinkei-suijaku, Pexeso or simply Pairs, is a card game in which all of the cards are laid face down on a surface and two cards are flipped face up over each turn. The object of the game is to turn over pairs of matching cards. ...
  12. The Concentration was a coalition of Dutch liberal parties between 1901 and 1918. The Vrijzinnig Democratische Bond, Liberale Unie and the Bond Vrije Liberalen participated. ...
  13. (Concentrated) Indicates that the fruit aromas and flavors of a wine are very powerful.
  14. (Concentrated) A solvent that contains a lot of dissolved solute.
  15. (Concentrated) Describes a product that has not been diluted excessively with water and therefore can be stored and transported in smaller containers while delivering the same amount of cleaning. Allows for more efficiency in packaging and use without sacrificing effectiveness.
  16. (Concentrated) Having a high percentage of active ingredient.
  17. (Concentrated) Opposite of diluted. A concentrated vaccine will have an especially high amount of antigen in it, which stimulates a strong, protective immune response.
  18. (Concentrated) Seems as though the wine’s flavours concentrate along the centre of your palate; often found in wines made from low yields or old vines.
  19. Giving complete attention to something. Key to effective acting.
  20. a notable accumulation of archaeological materials in a small area, such as a "concentration of flakes" etc.
  21. An option or special emphasis within a degree program.
  22. Recognising that 'the longer one does attend to a topic the more mastery of it one has,' the great American psychologist William James remarked, 'An education which should improve this faculty would be the education par excellence.' (1892/1985, p. ...
  23. Focusing full attention to movements; engaging the mind with every movement; visualizing the movement to facilitate the central nervous system to choose the right combination of muscles to perform the movement; key element in connecting the mind with the body.
  24. an amount per volume; a fraction. The numerator is the amount of the solute of interest and the denominator is usually the volume of the entire solution, the solvent and solute(s) together.
  25. Amount of a chemical in a particular volume or weight of air, water, soil, or other medium.