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Pronunciation: i'ko-nom'e-ter


  1. An instrument for determining the magnifying power of a microscope or the size of a microscopic object.
  2. An instrument for determining the degree of aniseikonia.

[G. eikon, image, + metron, measure]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.