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Pronunciation: mag'ni-fi-ka'shun


  1. The seeming increase in size of an object viewed under the microscope; when noted, this increased size is expressed by a figure preceded by ×, indicating the number of times its diameter is enlarged.
  2. The increased amplitude of a tracing, as of a muscular contraction, caused by the use of a lever with a long writing arm, one in which the fulcrum is placed nearer to the muscle than to the writing point.

[L. magnifico, pp. -atus, to magnify]

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