"pseudometric" meaning in English

{
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    {
      "args": {
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        "2": "pseudo",
        "3": "metric"
      },
      "expansion": "pseudo- + metric",
      "name": "prefix"
    }
  ],
  "etymology_text": "From pseudo- + metric.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "pseudometric (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": [
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with pseudo-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mathematics",
          "orig": "en:Mathematics",
          "parents": [
            "Formal sciences",
            "Sciences",
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            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "Describing a generalization of a metric space in which the distance between two distinct points can be zero."
      ],
      "id": "en-pseudometric-en-adj-pUsb-aIs",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "generalization",
          "generalization"
        ],
        [
          "metric space",
          "metric space"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Describing a generalization of a metric space in which the distance between two distinct points can be zero."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Pseudometric space"
      ]
    }
  ],
  "word": "pseudometric"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pseudo",
        "3": "metric"
      },
      "expansion": "pseudo- + metric",
      "name": "prefix"
    }
  ],
  "etymology_text": "From pseudo- + metric.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "pseudometric (not comparable)",
      "name": "en-adj"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
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        "English terms prefixed with pseudo-",
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      "glosses": [
        "Describing a generalization of a metric space in which the distance between two distinct points can be zero."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "generalization",
          "generalization"
        ],
        [
          "metric space",
          "metric space"
        ]
      ],
      "raw_glosses": [
        "(mathematics) Describing a generalization of a metric space in which the distance between two distinct points can be zero."
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "mathematics",
        "sciences"
      ],
      "wikipedia": [
        "Pseudometric space"
      ]
    }
  ],
  "word": "pseudometric"
}