- 1. n. diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening Source: wordnet
- 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. Source: webster
- 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. Source: adambom
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iris diaphragm
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consistingdiaphragmthinirisadjustableaperturecameraseyefastenedlenspiecesregulatingringsuggestingactionadjustedcentralchangediametermicroscopesnumberopeningoverlappingplates
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