calcium-45 in English

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{
  "head_templates": [
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        "head": "calcium-45"
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      "expansion": "calcium-45 (uncountable)",
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  "lang": "English",
  "lang_code": "en",
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        "A radioactive isotope of calcium, 4520Ca, with 20 protons and 25 neutrons, and a half-life of 162.6 days; it is used as a tracer in studying calcium metabolism. As it decays it undergoes nuclear transmutation via electron emission, also called negative beta decay (β⁻-decay), into scandium."
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      "id": "en-calcium-45-en-noun-cfxESphs",
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        [
          "calcium",
          "calcium"
        ],
        [
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          "proton"
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          "neutron",
          "neutron"
        ],
        [
          "half-life",
          "half-life"
        ],
        [
          "tracer",
          "tracer"
        ],
        [
          "metabolism",
          "metabolism"
        ],
        [
          "scandium",
          "scandium"
        ]
      ],
      "raw_glosses": [
        "(physics) A radioactive isotope of calcium, 4520Ca, with 20 protons and 25 neutrons, and a half-life of 162.6 days; it is used as a tracer in studying calcium metabolism. As it decays it undergoes nuclear transmutation via electron emission, also called negative beta decay (β⁻-decay), into scandium."
      ],
      "related": [
        {
          "word": "calcium-40"
        },
        {
          "word": "calcium-42"
        },
        {
          "word": "calcium-43"
        },
        {
          "word": "calcium-44"
        },
        {
          "word": "calcium-46"
        },
        {
          "word": "calcium-48"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "calcium-45"
}

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{
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      "expansion": "calcium-45 (uncountable)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "calcium-40"
    },
    {
      "word": "calcium-42"
    },
    {
      "word": "calcium-43"
    },
    {
      "word": "calcium-44"
    },
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    {
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      "glosses": [
        "A radioactive isotope of calcium, 4520Ca, with 20 protons and 25 neutrons, and a half-life of 162.6 days; it is used as a tracer in studying calcium metabolism. As it decays it undergoes nuclear transmutation via electron emission, also called negative beta decay (β⁻-decay), into scandium."
      ],
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          "calcium",
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          "metabolism",
          "metabolism"
        ],
        [
          "scandium",
          "scandium"
        ]
      ],
      "raw_glosses": [
        "(physics) A radioactive isotope of calcium, 4520Ca, with 20 protons and 25 neutrons, and a half-life of 162.6 days; it is used as a tracer in studying calcium metabolism. As it decays it undergoes nuclear transmutation via electron emission, also called negative beta decay (β⁻-decay), into scandium."
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        "physics"
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    }
  ],
  "word": "calcium-45"
}

This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2026-10-03 from the enwiktionary dump dated 2026-09-02 using wiktextract (1a05e46 and e3d6d4e). The data shown on this site has been post-processed and various details (e.g., extra categories) removed, some information disambiguated, and additional data merged from other sources. See the raw data download page for the unprocessed wiktextract data.

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"calcium-45" meaning in English

Noun