"virtual particle" meaning in English

{
  "antonyms": [
    {
      "word": "real particle"
    }
  ],
  "forms": [
    {
      "form": "virtual particles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "virtual particle (plural virtual particles)",
      "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": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a particle that exists for a limited time and space, introducing uncertainty in their energy and momentum"
      ],
      "id": "en-virtual_particle-en-noun-h9gYBMxW",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "particle",
          "particle"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "momentum",
          "momentum"
        ]
      ],
      "raw_glosses": [
        "(physics) a particle that exists for a limited time and space, introducing uncertainty in their energy and momentum"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "code": "ar",
          "lang": "Arabic",
          "roman": "jusaym iftirāḍiyy",
          "sense": "virtual particle",
          "word": "جُسَيْم اِفْتِرَاضِيّ"
        },
        {
          "code": "nl",
          "lang": "Dutch",
          "sense": "virtual particle",
          "tags": [
            "neuter"
          ],
          "word": "virtueel deeltje"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "virtual particle",
          "word": "virtuaalihiukkanen"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "virtual particle",
          "tags": [
            "feminine"
          ],
          "word": "particule virtuelle"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "virtual particle",
          "tags": [
            "neuter"
          ],
          "word": "virtuelles Teilchen"
        },
        {
          "code": "he",
          "lang": "Hebrew",
          "sense": "virtual particle",
          "tags": [
            "masculine"
          ],
          "word": "חלקיק וירטואלי"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "virtual particle",
          "tags": [
            "feminine"
          ],
          "word": "particella virtuale"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "virtual particle",
          "tags": [
            "feminine"
          ],
          "word": "cząstka wirtualna"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "virtual particle",
          "tags": [
            "feminine"
          ],
          "word": "partícula virtual"
        }
      ],
      "wikipedia": [
        "virtual particle"
      ]
    }
  ],
  "word": "virtual particle"
}

{
  "antonyms": [
    {
      "word": "real particle"
    }
  ],
  "forms": [
    {
      "form": "virtual particles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "virtual particle (plural virtual particles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Physics"
      ],
      "glosses": [
        "a particle that exists for a limited time and space, introducing uncertainty in their energy and momentum"
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "particle",
          "particle"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "momentum",
          "momentum"
        ]
      ],
      "raw_glosses": [
        "(physics) a particle that exists for a limited time and space, introducing uncertainty in their energy and momentum"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "virtual particle"
      ]
    }
  ],
  "translations": [
    {
      "code": "ar",
      "lang": "Arabic",
      "roman": "jusaym iftirāḍiyy",
      "sense": "virtual particle",
      "word": "جُسَيْم اِفْتِرَاضِيّ"
    },
    {
      "code": "nl",
      "lang": "Dutch",
      "sense": "virtual particle",
      "tags": [
        "neuter"
      ],
      "word": "virtueel deeltje"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "virtual particle",
      "word": "virtuaalihiukkanen"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "virtual particle",
      "tags": [
        "feminine"
      ],
      "word": "particule virtuelle"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "virtual particle",
      "tags": [
        "neuter"
      ],
      "word": "virtuelles Teilchen"
    },
    {
      "code": "he",
      "lang": "Hebrew",
      "sense": "virtual particle",
      "tags": [
        "masculine"
      ],
      "word": "חלקיק וירטואלי"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "virtual particle",
      "tags": [
        "feminine"
      ],
      "word": "particella virtuale"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "virtual particle",
      "tags": [
        "feminine"
      ],
      "word": "cząstka wirtualna"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "virtual particle",
      "tags": [
        "feminine"
      ],
      "word": "partícula virtual"
    }
  ],
  "word": "virtual particle"
}