iris diaphragm iris cristata • irised · · · Info · Definitions · Synonyms · Characters · · iris diaphragm · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening. Synonyms: iris, iris diaphragm. · · Noun Definition 1 Synonyms · · · iris · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 g latin small letter g U+0067 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073