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Medical Dictionary

concentration

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noun con·cen·tra·tion \ˌkän(t)-sən-ˈtrā-shən, -ˌsen-\

Medical Definition of concentration

  1. 1:  the act or action of concentrating: asa:  a directing of the attention or of the mental faculties toward a single objectb:  an increasing of strength (as of a solute or a gas in a mixture) or a purifying by partial or total removal of diluents, solvents, admixed gases, extraneous material, or waste (as by evaporation or diffusion)

  2. 2:  a crude active principle of a vegetable especially for pharmaceutical use in the form of a powder or resin

  3. 3:  the relative content of a component (as dissolved or dispersed material) of a solution, mixture, or dispersion that may be expressed in percentage by weight or by volume, in parts per million, or in grams per liter





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