"random walker" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Mathematics",
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            "Sciences",
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            "Fundamental"
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      "glosses": [
        "An object taking a random walk."
      ],
      "id": "en-random_walker-en-noun-~yqyiC4i",
      "links": [
        [
          "mathematics",
          "mathematics"
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        [
          "random walk",
          "random walk"
        ]
      ],
      "raw_glosses": [
        "(mathematics) An object taking a random walk."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "random walker"
}

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      "expansion": "random walker (plural random walkers)",
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  "lang_code": "en",
  "pos": "noun",
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        "English multiword terms",
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      "glosses": [
        "An object taking a random walk."
      ],
      "links": [
        [
          "mathematics",
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          "random walk",
          "random walk"
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      "raw_glosses": [
        "(mathematics) An object taking a random walk."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "random walker"
}