"varifocal" meaning in English

{
  "etymology_templates": [
    {
      "args": {
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        "2": "vari",
        "3": "focal"
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      "expansion": "vari- + focal",
      "name": "prefix"
    }
  ],
  "etymology_text": "From vari- + focal.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "varifocal (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with vari-",
          "parents": [],
          "source": "w"
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        {
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          "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"
        }
      ],
      "derived": [
        {
          "word": "varifocal lens"
        },
        {
          "word": "varifocals"
        }
      ],
      "glosses": [
        "Having a variable focal length, with focus that changes in synchronization."
      ],
      "id": "en-varifocal-en-adj-m37TewrO",
      "links": [
        [
          "variable",
          "variable"
        ],
        [
          "focal length",
          "focal length"
        ],
        [
          "focus",
          "focus"
        ]
      ],
      "tags": [
        "not-comparable"
      ],
      "translations": [
        {
          "code": "cs",
          "lang": "Czech",
          "sense": "having a variable focal length",
          "word": "multifokální"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "having a variable focal length",
          "word": "varifocal"
        }
      ],
      "wikipedia": [
        "varifocal lens"
      ]
    }
  ],
  "word": "varifocal"
}

{
  "derived": [
    {
      "word": "varifocal lens"
    },
    {
      "word": "varifocals"
    }
  ],
  "etymology_templates": [
    {
      "args": {
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        "2": "vari",
        "3": "focal"
      },
      "expansion": "vari- + focal",
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    }
  ],
  "etymology_text": "From vari- + focal.",
  "head_templates": [
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        "1": "-"
      },
      "expansion": "varifocal (not comparable)",
      "name": "en-adj"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
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        "Pages with 1 entry",
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        "en:Photography"
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      "glosses": [
        "Having a variable focal length, with focus that changes in synchronization."
      ],
      "links": [
        [
          "variable",
          "variable"
        ],
        [
          "focal length",
          "focal length"
        ],
        [
          "focus",
          "focus"
        ]
      ],
      "tags": [
        "not-comparable"
      ],
      "wikipedia": [
        "varifocal lens"
      ]
    }
  ],
  "translations": [
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "having a variable focal length",
      "word": "multifokální"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "having a variable focal length",
      "word": "varifocal"
    }
  ],
  "word": "varifocal"
}