"preloader" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "preload",
        "3": "er"
      },
      "expansion": "preload + -er",
      "name": "suffix"
    },
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "loader"
      },
      "expansion": "pre- + loader",
      "name": "prefix"
    }
  ],
  "etymology_text": "preload + -er or pre- + loader",
  "forms": [
    {
      "form": "preloaders",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "preloader (plural preloaders)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "one who, or that which, preloads",
          "word": "preload"
        }
      ],
      "glosses": [
        "Agent noun of preload; one who, or that which, preloads."
      ],
      "id": "en-preloader-en-noun-F9pZwISF",
      "links": [
        [
          "Agent noun",
          "agent noun"
        ],
        [
          "preload",
          "preload"
        ]
      ],
      "tags": [
        "agent",
        "form-of"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Programming",
          "orig": "en:Programming",
          "parents": [
            "Computing",
            "Software engineering",
            "Technology",
            "Computer science",
            "Engineering",
            "Software",
            "All topics",
            "Sciences",
            "Applied sciences",
            "Media",
            "Fundamental",
            "Communication"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Web design",
          "orig": "en:Web design",
          "parents": [
            "Design",
            "World Wide Web",
            "Art",
            "Internet",
            "Culture",
            "Computing",
            "Networking",
            "Society",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "32 68",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w+disamb"
        },
        {
          "_dis": "30 70",
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
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          "source": "w+disamb"
        },
        {
          "_dis": "30 70",
          "kind": "other",
          "name": "English terms prefixed with pre-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "27 73",
          "kind": "other",
          "name": "English terms suffixed with -er",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "In Flash animations, the loading screen that stalls for time while resources are downloaded."
      ],
      "id": "en-preloader-en-noun-SR1lZyj8",
      "links": [
        [
          "web development",
          "web development"
        ],
        [
          "Flash",
          "Flash"
        ],
        [
          "animation",
          "animation"
        ],
        [
          "loading screen",
          "loading screen"
        ]
      ],
      "qualifier": "web development",
      "raw_glosses": [
        "(web development, historical) In Flash animations, the loading screen that stalls for time while resources are downloaded."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "preloader"
}

{
  "categories": [
    "English agent nouns",
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with language name categories using raw markup",
    "English lemmas",
    "English nouns",
    "English terms prefixed with pre-",
    "English terms suffixed with -er"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "preload",
        "3": "er"
      },
      "expansion": "preload + -er",
      "name": "suffix"
    },
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "loader"
      },
      "expansion": "pre- + loader",
      "name": "prefix"
    }
  ],
  "etymology_text": "preload + -er or pre- + loader",
  "forms": [
    {
      "form": "preloaders",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "preloader (plural preloaders)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "form_of": [
        {
          "extra": "one who, or that which, preloads",
          "word": "preload"
        }
      ],
      "glosses": [
        "Agent noun of preload; one who, or that which, preloads."
      ],
      "links": [
        [
          "Agent noun",
          "agent noun"
        ],
        [
          "preload",
          "preload"
        ]
      ],
      "tags": [
        "agent",
        "form-of"
      ]
    },
    {
      "categories": [
        "English terms with historical senses",
        "en:Programming",
        "en:Web design"
      ],
      "glosses": [
        "In Flash animations, the loading screen that stalls for time while resources are downloaded."
      ],
      "links": [
        [
          "web development",
          "web development"
        ],
        [
          "Flash",
          "Flash"
        ],
        [
          "animation",
          "animation"
        ],
        [
          "loading screen",
          "loading screen"
        ]
      ],
      "qualifier": "web development",
      "raw_glosses": [
        "(web development, historical) In Flash animations, the loading screen that stalls for time while resources are downloaded."
      ],
      "tags": [
        "historical"
      ]
    }
  ],
  "word": "preloader"
}