concentration
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(kon″sĕn-trā′shŏn)

1. Fixation of the mind on one subject to the exclusion of all other thoughts.
2. An increase in the strength of a fluid by evaporation.
3. The amount of a substance in a mixture or solution expressed as weight or mass per unit volume.
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(kon″sĕn-trā′shŏn)

1. Fixation of the mind on one subject to the exclusion of all other thoughts.
2. An increase in the strength of a fluid by evaporation.
3. The amount of a substance in a mixture or solution expressed as weight or mass per unit volume.
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