What is the definition of Iris diaphragm? | Dictionary.net

IRIS DIAPHRAGM

\ˈa͡ɪɹɪs dˈa͡ɪəfɹˌam], \ˈa‍ɪɹɪs dˈa‍ɪəfɹˌam], \ˈaɪ_ɹ_ɪ_s d_ˈaɪ_ə_f_ɹ_ˌa_m]\

Definitions of IRIS DIAPHRAGM

2010 - New Age Dictionary Database
1913 - Webster's Revised Unabridged Dictionary

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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.

2010 - New Age Dictionary Database
By Oddity Software

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.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.

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