"Ishihara test" meaning in All languages combined

See Ishihara test on Wiktionary

Noun [English]

Forms: Ishihara tests [plural]
Etymology: Devised by Shinobu Ishihara, a professor at the University of Tokyo, who first published his tests in 1917. Head templates: {{en-noun}} Ishihara test (plural Ishihara tests)
  1. A test for red-green color blindness, using a number of colored plates (Ishihara plates), each of which contains a circle of dots of various colors and sizes. Depending on the person's vision, certain dots within the pattern will appear to form recognizable numbers or shapes.
    Sense id: en-Ishihara_test-en-noun-illUXkYY Categories (other): English entries with incorrect language header, Pages with 1 entry, Pages with entries

Inflected forms

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  "forms": [
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  "lang_code": "en",
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          "ref": "1935 May 18, Mary S. Millard, David Shakow, “A NOTE ON COLOR-BLINDNESS IN SOME PSYCHOTIC GROUPS”, in The Journal of Social Psychology, volume 6, number 2, →DOI, →ISSN, page 252:",
          "text": "In order to check on a clinically derived impression of a greater incidence of color-blindness among psychotic patients, the Ishihara Test (5) was given to a group of patients at the Worcester State Hospital.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A test for red-green color blindness, using a number of colored plates (Ishihara plates), each of which contains a circle of dots of various colors and sizes. Depending on the person's vision, certain dots within the pattern will appear to form recognizable numbers or shapes."
      ],
      "id": "en-Ishihara_test-en-noun-illUXkYY",
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          "Ishihara plate"
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  "word": "Ishihara test"
}
{
  "etymology_text": "Devised by Shinobu Ishihara, a professor at the University of Tokyo, who first published his tests in 1917.",
  "forms": [
    {
      "form": "Ishihara tests",
      "tags": [
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          "text": "In order to check on a clinically derived impression of a greater incidence of color-blindness among psychotic patients, the Ishihara Test (5) was given to a group of patients at the Worcester State Hospital.",
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        "A test for red-green color blindness, using a number of colored plates (Ishihara plates), each of which contains a circle of dots of various colors and sizes. Depending on the person's vision, certain dots within the pattern will appear to form recognizable numbers or shapes."
      ],
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This page is a part of the kaikki.org machine-readable All languages combined dictionary. This dictionary is based on structured data extracted on 2026-09-20 from the enwiktionary dump dated 2026-09-02 using wiktextract (d6fca27 and 65e1673). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

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