"preflash" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "flash"
      },
      "expansion": "pre- + flash",
      "name": "prefix"
    }
  ],
  "etymology_text": "From pre- + flash.",
  "forms": [
    {
      "form": "preflashes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "preflash (plural preflashes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with pre-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Photography",
          "orig": "en:Photography",
          "parents": [
            "Art",
            "Human activity",
            "Media",
            "Culture",
            "Human behaviour",
            "Communication",
            "Society",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "2005, Michael Guncheon, Canon EOS Digital Rebel XT/EOS 350D:",
          "text": "First, a preflash is fired to analyze exposure. Then the flash fires during the actual exposure, creating the image. During the preflash, the camera's Evaluative metering system measures the light reflected back from the subject.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A flash produced in advance of the main flash when taking a picture."
      ],
      "id": "en-preflash-en-noun-~faZgGZi",
      "links": [
        [
          "photography",
          "photography"
        ],
        [
          "flash",
          "flash"
        ]
      ],
      "raw_glosses": [
        "(photography) A flash produced in advance of the main flash when taking a picture."
      ],
      "synonyms": [
        {
          "word": "pre-flash"
        }
      ],
      "topics": [
        "arts",
        "hobbies",
        "lifestyle",
        "photography"
      ]
    }
  ],
  "word": "preflash"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "flash"
      },
      "expansion": "pre- + flash",
      "name": "prefix"
    }
  ],
  "etymology_text": "From pre- + flash.",
  "forms": [
    {
      "form": "preflashes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "preflash (plural preflashes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms prefixed with pre-",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Photography"
      ],
      "examples": [
        {
          "ref": "2005, Michael Guncheon, Canon EOS Digital Rebel XT/EOS 350D:",
          "text": "First, a preflash is fired to analyze exposure. Then the flash fires during the actual exposure, creating the image. During the preflash, the camera's Evaluative metering system measures the light reflected back from the subject.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A flash produced in advance of the main flash when taking a picture."
      ],
      "links": [
        [
          "photography",
          "photography"
        ],
        [
          "flash",
          "flash"
        ]
      ],
      "raw_glosses": [
        "(photography) A flash produced in advance of the main flash when taking a picture."
      ],
      "topics": [
        "arts",
        "hobbies",
        "lifestyle",
        "photography"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "pre-flash"
    }
  ],
  "word": "preflash"
}