"quantum fluctuation" meaning in English

{
  "forms": [
    {
      "form": "quantum fluctuations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "quantum fluctuation (plural quantum fluctuations)",
      "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": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Finnish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Quantum mechanics",
          "orig": "en:Quantum mechanics",
          "parents": [
            "Physics",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle"
      ],
      "id": "en-quantum_fluctuation-en-noun-~ni2geBO",
      "links": [
        [
          "quantum mechanics",
          "quantum mechanics"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "space",
          "space"
        ],
        [
          "Heisenberg uncertainty principle",
          "Heisenberg uncertainty principle"
        ]
      ],
      "qualifier": "quantum mechanics",
      "raw_glosses": [
        "(quantum mechanics) A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle"
      ],
      "synonyms": [
        {
          "word": "vacuum fluctuation"
        }
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle",
          "word": "kvanttifluktuaatio"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle",
          "tags": [
            "feminine"
          ],
          "word": "Quantenfluktuation"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle",
          "tags": [
            "feminine"
          ],
          "word": "Vakuumfluktuation"
        }
      ],
      "wikipedia": [
        "quantum fluctuation"
      ]
    }
  ],
  "word": "quantum fluctuation"
}

{
  "forms": [
    {
      "form": "quantum fluctuations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "quantum fluctuation (plural quantum fluctuations)",
      "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",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with German translations",
        "en:Quantum mechanics"
      ],
      "glosses": [
        "A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle"
      ],
      "links": [
        [
          "quantum mechanics",
          "quantum mechanics"
        ],
        [
          "energy",
          "energy"
        ],
        [
          "space",
          "space"
        ],
        [
          "Heisenberg uncertainty principle",
          "Heisenberg uncertainty principle"
        ]
      ],
      "qualifier": "quantum mechanics",
      "raw_glosses": [
        "(quantum mechanics) A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle"
      ],
      "wikipedia": [
        "quantum fluctuation"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "vacuum fluctuation"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle",
      "word": "kvanttifluktuaatio"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle",
      "tags": [
        "feminine"
      ],
      "word": "Quantenfluktuation"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "A momentary fluctuation in the energy at a point in space due to the Heisenberg uncertainty principle",
      "tags": [
        "feminine"
      ],
      "word": "Vakuumfluktuation"
    }
  ],
  "word": "quantum fluctuation"
}