"Planck frequency" meaning in English

{
  "forms": [
    {
      "form": "Planck frequencies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Planck frequency (plural Planck frequencies)",
      "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 language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A repeating event that occurs once every Planck time, with a frequency of F_p=1/(2π)√=E_P/h≈2.952×10⁴² mbox Hz. this frequency is said to be the upper bound for the frequency of an electromagnetic ray or cosmic rays."
      ],
      "id": "en-Planck_frequency-en-noun-tdSUrnjP",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "Planck time",
          "Planck time"
        ],
        [
          "frequency",
          "frequency"
        ]
      ],
      "raw_glosses": [
        "(physics) A repeating event that occurs once every Planck time, with a frequency of F_p=1/(2π)√=E_P/h≈2.952×10⁴² mbox Hz. this frequency is said to be the upper bound for the frequency of an electromagnetic ray or cosmic rays."
      ],
      "related": [
        {
          "word": "Planck angular frequency"
        },
        {
          "word": "Planck unit"
        }
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "Planck frequency"
}

{
  "forms": [
    {
      "form": "Planck frequencies",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Planck frequency (plural Planck frequencies)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Planck angular frequency"
    },
    {
      "word": "Planck unit"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Physics"
      ],
      "glosses": [
        "A repeating event that occurs once every Planck time, with a frequency of F_p=1/(2π)√=E_P/h≈2.952×10⁴² mbox Hz. this frequency is said to be the upper bound for the frequency of an electromagnetic ray or cosmic rays."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "Planck time",
          "Planck time"
        ],
        [
          "frequency",
          "frequency"
        ]
      ],
      "raw_glosses": [
        "(physics) A repeating event that occurs once every Planck time, with a frequency of F_p=1/(2π)√=E_P/h≈2.952×10⁴² mbox Hz. this frequency is said to be the upper bound for the frequency of an electromagnetic ray or cosmic rays."
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "Planck frequency"
}