"ambulator" meaning in English

{
  "forms": [
    {
      "form": "ambulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ambulator (plural ambulators)",
      "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 entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "People",
          "orig": "en:People",
          "parents": [
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A walker; one who walks."
      ],
      "id": "en-ambulator-en-noun-uUKPRNiF",
      "links": [
        [
          "walker",
          "walker"
        ]
      ]
    }
  ],
  "word": "ambulator"
}

{
  "forms": [
    {
      "form": "ambulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "ambulator (plural ambulators)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English nouns",
        "English terms derived from Proto-Indo-European",
        "English terms derived from the Proto-Indo-European root *h₂el- (wander)",
        "en:People"
      ],
      "glosses": [
        "A walker; one who walks."
      ],
      "links": [
        [
          "walker",
          "walker"
        ]
      ]
    }
  ],
  "word": "ambulator"
}