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Thesaurus: iris diaphragm

diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening

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Definitions

  1. n. diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening
  2. An adjustable diaphragm, suggesting the iris of the eye in its action, for regulating the aperture of a lens, consisting of a number of thin pieces fastened to a ring. It is used in cameras and microscopes.
  3. An adjustable diaphragm, suggesting the iris of the eye in itsaction, for regulating the aperture of a lens, consisting of a numberof thin pieces fastened to a ring. It is used in cameras andmicroscopes.