"circulator" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "circulate",
        "3": "or"
      },
      "expansion": "circulate + -or",
      "name": "suffix"
    }
  ],
  "etymology_text": "circulate + -or",
  "forms": [
    {
      "form": "circulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "circulator (plural circulators)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "13 39 47",
          "kind": "other",
          "name": "English terms suffixed with -or",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "Who is the circulator of this rumor?"
        }
      ],
      "glosses": [
        "A person or thing that causes something to circulate"
      ],
      "id": "en-circulator-en-noun-IIZoMDgE",
      "links": [
        [
          "circulate",
          "circulate"
        ]
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Transport",
          "orig": "en:Transport",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "13 39 47",
          "kind": "other",
          "name": "English terms suffixed with -or",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "text": "You can ride the airport circulator to the next terminal."
        }
      ],
      "glosses": [
        "A local transit system that provides regular service within a closed loop"
      ],
      "id": "en-circulator-en-noun-7aeEeQxc",
      "links": [
        [
          "transport",
          "transport"
        ],
        [
          "loop",
          "loop"
        ]
      ],
      "raw_glosses": [
        "(transport) A local transit system that provides regular service within a closed loop"
      ],
      "topics": [
        "transport"
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Electronics",
          "orig": "en:Electronics",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "9 40 51",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "13 39 47",
          "kind": "other",
          "name": "English terms suffixed with -or",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A passive electronic component with three or more ports, in which the ports can be accessed in such a way that when a signal is fed into any port it is transferred to the next port only"
      ],
      "id": "en-circulator-en-noun-XMYmrCCc",
      "links": [
        [
          "electronics",
          "electronics"
        ]
      ],
      "raw_glosses": [
        "(electronics) A passive electronic component with three or more ports, in which the ports can be accessed in such a way that when a signal is fed into any port it is transferred to the next port only"
      ],
      "topics": [
        "business",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "electronics",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "circulator"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms suffixed with -or"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "circulate",
        "3": "or"
      },
      "expansion": "circulate + -or",
      "name": "suffix"
    }
  ],
  "etymology_text": "circulate + -or",
  "forms": [
    {
      "form": "circulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "circulator (plural circulators)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "examples": [
        {
          "text": "Who is the circulator of this rumor?"
        }
      ],
      "glosses": [
        "A person or thing that causes something to circulate"
      ],
      "links": [
        [
          "circulate",
          "circulate"
        ]
      ]
    },
    {
      "categories": [
        "en:Transport"
      ],
      "examples": [
        {
          "text": "You can ride the airport circulator to the next terminal."
        }
      ],
      "glosses": [
        "A local transit system that provides regular service within a closed loop"
      ],
      "links": [
        [
          "transport",
          "transport"
        ],
        [
          "loop",
          "loop"
        ]
      ],
      "raw_glosses": [
        "(transport) A local transit system that provides regular service within a closed loop"
      ],
      "topics": [
        "transport"
      ]
    },
    {
      "categories": [
        "en:Electronics"
      ],
      "glosses": [
        "A passive electronic component with three or more ports, in which the ports can be accessed in such a way that when a signal is fed into any port it is transferred to the next port only"
      ],
      "links": [
        [
          "electronics",
          "electronics"
        ]
      ],
      "raw_glosses": [
        "(electronics) A passive electronic component with three or more ports, in which the ports can be accessed in such a way that when a signal is fed into any port it is transferred to the next port only"
      ],
      "topics": [
        "business",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "electronics",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "circulator"
}