"undulator" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "undulate",
        "3": "or"
      },
      "expansion": "undulate + -or",
      "name": "suffix"
    }
  ],
  "etymology_text": "From undulate + -or.",
  "forms": [
    {
      "form": "undulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "undulator (plural undulators)",
      "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 terms suffixed with -or",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with French translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A periodic structure of dipole magnets that generates a low-energy collimated beam of radiation."
      ],
      "id": "en-undulator-en-noun-QCpdC02j",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "periodic",
          "periodic"
        ],
        [
          "dipole",
          "dipole"
        ],
        [
          "magnet",
          "magnet"
        ],
        [
          "collimated",
          "collimated"
        ],
        [
          "radiation",
          "radiation"
        ]
      ],
      "raw_glosses": [
        "(physics) A periodic structure of dipole magnets that generates a low-energy collimated beam of radiation."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "undulator",
          "tags": [
            "masculine"
          ],
          "word": "ondulator"
        }
      ],
      "wikipedia": [
        "undulator"
      ]
    }
  ],
  "word": "undulator"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "undulate",
        "3": "or"
      },
      "expansion": "undulate + -or",
      "name": "suffix"
    }
  ],
  "etymology_text": "From undulate + -or.",
  "forms": [
    {
      "form": "undulators",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "undulator (plural undulators)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -or",
        "Entries with translation boxes",
        "Pages with 2 entries",
        "Terms with French translations",
        "en:Physics"
      ],
      "glosses": [
        "A periodic structure of dipole magnets that generates a low-energy collimated beam of radiation."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "periodic",
          "periodic"
        ],
        [
          "dipole",
          "dipole"
        ],
        [
          "magnet",
          "magnet"
        ],
        [
          "collimated",
          "collimated"
        ],
        [
          "radiation",
          "radiation"
        ]
      ],
      "raw_glosses": [
        "(physics) A periodic structure of dipole magnets that generates a low-energy collimated beam of radiation."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "undulator"
      ]
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "undulator",
      "tags": [
        "masculine"
      ],
      "word": "ondulator"
    }
  ],
  "word": "undulator"
}