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confocal

[ kon-foh-kuhl ]

adjective

, Mathematics.
  1. having the same focus or foci.


confocal

/ kɒnˈfəʊkəl /

adjective

  1. having a common focus or common foci

    confocal ellipses



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Word History and Origins

Origin of confocal1

First recorded in 1865–70; con- + focal

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Example Sentences

Two ellipsoids in which the principal sections lie in the same planes, and have the same foci, are called confocal.

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confluentconfocal microscope