"defocus" meaning in English

See defocus in All languages combined, or Wiktionary

Noun

IPA: /diːˈfəʊkəs/ [UK], /diˈfoʊkəs/ [General-American]
Etymology: Etymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- English focus English defocus From de- + focus. Etymology templates: {{ety|en|:af|de-|focus|text=+|tree=1}} Etymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- English focus English defocus [Appendix:Glossary#derived_terms|Derived]] from", "terms" : [ { "children" : [ { "terms" : [ { "id" : "of", "children" : [ { "terms" : [ { "children" : [ { "terms" : [ { "children" : [ { "terms" : [ { "children" : [ ], "lang_name" : "Proto-Indo-European", "term" : "*de", "status" : "ok", "lang" : "ine-pro" }, { "children" : [ ], "lang_name" : "Proto-Indo-European", "term" : "*-h₁", "status" : "missing", "lang" : "ine-pro" } ], "keyword_label" : "From", "is_group" : true, "keyword" : "affix" } ], "lang_name" : "Proto-Indo-European", "term" : "*déh₁", "status" : "ok", "lang" : "ine-pro" } ], "keyword_label" : "Inherited from", "keyword" : "inherited" } ], "lang_name" : "Proto-Italic", "term" : "*dē", "status" : "inline", "lang" : "itc-pro" } ], "keyword_label" : "Inherited from", "keyword" : "inherited" } ], "status" : "ok", "lang_name" : "Latin", "term" : "dē", "lang" : "la" } ], "keyword_label" : "From", "keyword" : "from" } ], "lang_name" : "Latin", "term" : "dē-", "status" : "ok", "lang" : "la" } ], "keyword" : "derived" } ], "lang_name" : "English", "term" : "de-", "status" : "ok", "lang" : "en" }, { "children" : [ ], "lang_name" : "English", "term" : "focus", "status" : "missing", "lang" : "en" } ], "keyword_label" : "From", "is_group" : true, "keyword" : "affix" } ], "lang_name" : "English", "term" : "defocus", "status" : "ok", "lang" : "en" }" data-lang="en" data-title="defocus"> From de- + focus. Head templates: {{en-noun|-}} defocus (uncountable)
  1. The process of going out of focus. Tags: uncountable
    Sense id: en-defocus-en-noun-D9BBlIwh Categories (other): English entries referencing missing etymons, English entries with etymology texts, English entries with etymology trees, English entries with incorrect language header, English terms prefixed with de-, Pages using etymon with no ID, Pages with 1 entry, Pages with entries, Pages with etymology trees Disambiguation of English entries referencing missing etymons: 53 16 31 Disambiguation of English entries with etymology texts: 55 15 30 Disambiguation of English entries with etymology trees: 55 15 30 Disambiguation of English entries with incorrect language header: 51 17 31 Disambiguation of English terms prefixed with de-: 53 27 20 Disambiguation of Pages using etymon with no ID: 57 10 32 Disambiguation of Pages with 1 entry: 56 10 34 Disambiguation of Pages with entries: 56 10 34 Disambiguation of Pages with etymology trees: 56 15 30
  2. (optics) The distance by which the focal point is in front of (positive defocus) or beyond (negative defocus) the image or target surface. Tags: uncountable
    Sense id: en-defocus-en-noun-9lEDcXea Categories (other): Optics Topics: engineering, natural-sciences, optics, physical-sciences, physics

Verb

IPA: /diːˈfəʊkəs/ [UK], /diˈfoʊkəs/ [General-American] Forms: defocuses [present, singular, third-person], defocusses [present, singular, third-person], defocusing [participle, present], defocussing [participle, present], defocused [participle, past], defocused [past], defocussed [participle, past], defocussed [past]
Etymology: Etymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- English focus English defocus From de- + focus. Etymology templates: {{ety|en|:af|de-|focus|text=+|tree=1}} Etymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- English focus English defocus [Appendix:Glossary#derived_terms|Derived]] from", "terms" : [ { "children" : [ { "terms" : [ { "id" : "of", "children" : [ { "terms" : [ { "children" : [ { "terms" : [ { "children" : [ { "terms" : [ { "children" : [ ], "lang_name" : "Proto-Indo-European", "term" : "*de", "status" : "ok", "lang" : "ine-pro" }, { "children" : [ ], "lang_name" : "Proto-Indo-European", "term" : "*-h₁", "status" : "missing", "lang" : "ine-pro" } ], "keyword_label" : "From", "is_group" : true, "keyword" : "affix" } ], "lang_name" : "Proto-Indo-European", "term" : "*déh₁", "status" : "ok", "lang" : "ine-pro" } ], "keyword_label" : "Inherited from", "keyword" : "inherited" } ], "lang_name" : "Proto-Italic", "term" : "*dē", "status" : "inline", "lang" : "itc-pro" } ], "keyword_label" : "Inherited from", "keyword" : "inherited" } ], "status" : "ok", "lang_name" : "Latin", "term" : "dē", "lang" : "la" } ], "keyword_label" : "From", "keyword" : "from" } ], "lang_name" : "Latin", "term" : "dē-", "status" : "ok", "lang" : "la" } ], "keyword" : "derived" } ], "lang_name" : "English", "term" : "de-", "status" : "ok", "lang" : "en" }, { "children" : [ ], "lang_name" : "English", "term" : "focus", "status" : "missing", "lang" : "en" } ], "keyword_label" : "From", "is_group" : true, "keyword" : "affix" } ], "lang_name" : "English", "term" : "defocus", "status" : "ok", "lang" : "en" }" data-lang="en" data-title="defocus"> From de- + focus. Head templates: {{en-verb|+,++}} defocus (third-person singular simple present defocuses or defocusses, present participle defocusing or defocussing, simple past and past participle defocused or defocussed)
  1. (transitive) To cause (a lens, or a beam of light or particles, etc.) to be out of focus. Tags: transitive
    Sense id: en-defocus-en-verb-giAjG8NK

Inflected forms

Alternative forms

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      "form": "defocusses",
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    {
      "form": "defocusing",
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      "form": "defocussing",
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        "(transitive) To cause (a lens, or a beam of light or particles, etc.) to be out of focus."
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      "glosses": [
        "The process of going out of focus."
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          "ref": "2012, Subhasis Chaudhuri, A. N. Rajagopalan, Depth From Defocus: A Real Aperture Imaging Approach, page 16:",
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          "type": "quotation"
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        "The distance by which the focal point is in front of (positive defocus) or beyond (negative defocus) the image or target surface."
      ],
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        "(optics) The distance by which the focal point is in front of (positive defocus) or beyond (negative defocus) the image or target surface."
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        "physics"
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  "word": "defocus"
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        "To cause (a lens, or a beam of light or particles, etc.) to be out of focus."
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        "(transitive) To cause (a lens, or a beam of light or particles, etc.) to be out of focus."
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  "word": "defocus"
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        "1": "en",
        "2": ":af",
        "3": "de-",
        "4": "focus",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *de\nProto-Indo-European *-h₁\nProto-Indo-European *déh₁\nProto-Italic *dē\nLatin dē\nLatin dē-der.\nEnglish de-\nEnglish focus\nEnglish defocus\n[Appendix:Glossary#derived_terms|Derived]] from\", \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"id\" : \"of\", \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ { \"terms\" : [ { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*de\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" }, { \"children\" : [ ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*-h₁\", \"status\" : \"missing\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*déh₁\", \"status\" : \"ok\", \"lang\" : \"ine-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"lang_name\" : \"Proto-Italic\", \"term\" : \"*dē\", \"status\" : \"inline\", \"lang\" : \"itc-pro\" } ], \"keyword_label\" : \"Inherited from\", \"keyword\" : \"inherited\" } ], \"status\" : \"ok\", \"lang_name\" : \"Latin\", \"term\" : \"dē\", \"lang\" : \"la\" } ], \"keyword_label\" : \"From\", \"keyword\" : \"from\" } ], \"lang_name\" : \"Latin\", \"term\" : \"dē-\", \"status\" : \"ok\", \"lang\" : \"la\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"English\", \"term\" : \"de-\", \"status\" : \"ok\", \"lang\" : \"en\" }, { \"children\" : [ ], \"lang_name\" : \"English\", \"term\" : \"focus\", \"status\" : \"missing\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"English\", \"term\" : \"defocus\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"defocus\">\nFrom de- + focus.",
      "name": "ety"
    }
  ],
  "etymology_text": "Etymology tree\nProto-Indo-European *de\nProto-Indo-European *-h₁\nProto-Indo-European *déh₁\nProto-Italic *dē\nLatin dē\nLatin dē-der.\nEnglish de-\nEnglish focus\nEnglish defocus\nFrom de- + focus.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "defocus (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The process of going out of focus."
      ],
      "tags": [
        "uncountable"
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "Quotation templates to be cleaned",
        "en:Optics"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              64,
              71
            ],
            [
              120,
              127
            ]
          ],
          "ref": "2012, Subhasis Chaudhuri, A. N. Rajagopalan, Depth From Defocus: A Real Aperture Imaging Approach, page 16:",
          "text": "Fundamental to the concept of recovering the depth by measuring defocus is the relationship between the focused and the defocused images of a scene.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The distance by which the focal point is in front of (positive defocus) or beyond (negative defocus) the image or target surface."
      ],
      "links": [
        [
          "optics",
          "optics"
        ],
        [
          "focal point",
          "focal point"
        ]
      ],
      "raw_glosses": [
        "(optics) The distance by which the focal point is in front of (positive defocus) or beyond (negative defocus) the image or target surface."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "engineering",
        "natural-sciences",
        "optics",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/diːˈfəʊkəs/",
      "tags": [
        "UK"
      ]
    },
    {
      "ipa": "/diˈfoʊkəs/",
      "tags": [
        "General-American"
      ]
    }
  ],
  "word": "defocus"
}

Download raw JSONL data for defocus meaning in English (8.0kB)


This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2026-06-07 from the enwiktionary dump dated 2026-06-01 using wiktextract (e79dea5 and 7f4db16). 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.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.