"activation energy" meaning in English

See activation energy in All languages combined, or Wiktionary

Noun

Forms: activation energies [plural]
Head templates: {{en-noun}} activation energy (plural activation energies)
  1. (physical chemistry, physics) The energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy. A small push given to a stable but top-heavy object may cause it to fall over; the potential energy released during the fall was present in the system all along but could not be realized as long as the object was upright and balanced. Tags: physical Categories (topical): Energy, Physical chemistry, Physics Translations (activation energy): aktiveringsenergie (Afrikaans), aktivoitumisenergia (Finnish), aktivaatioenergia (Finnish), energi aktivasi (Indonesian), tenaga pengaktifan (Malay), انرژی اکتیواسیون (enerži-ye aktivâsiyon) (Persian), energie activantă [feminine] (Romanian), energie de activare [feminine] (Romanian), aktivacijska energija [feminine] (Serbo-Croatian), aktiveringsenergi (Swedish), sabilusing kusog (Tagalog), aktivasyon enerjisi (Turkish)
    Sense id: en-activation_energy-en-noun-juYrq-gu Categories (other): English entries with incorrect language header, Physical quantities Topics: chemistry, natural-sciences, physical-sciences, physics

Inflected forms

Download JSON data for activation energy meaning in English (3.7kB)

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          "kind": "other",
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            "Physics",
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      "glosses": [
        "The energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy. A small push given to a stable but top-heavy object may cause it to fall over; the potential energy released during the fall was present in the system all along but could not be realized as long as the object was upright and balanced."
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        [
          "energy",
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        ],
        [
          "initiate",
          "initiate"
        ],
        [
          "reaction",
          "reaction"
        ],
        [
          "fuse",
          "fuse"
        ],
        [
          "firecracker",
          "firecracker"
        ]
      ],
      "raw_glosses": [
        "(physical chemistry, physics) The energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy. A small push given to a stable but top-heavy object may cause it to fall over; the potential energy released during the fall was present in the system all along but could not be realized as long as the object was upright and balanced."
      ],
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      "translations": [
        {
          "code": "af",
          "lang": "Afrikaans",
          "sense": "activation energy",
          "word": "aktiveringsenergie"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "activation energy",
          "word": "aktivoitumisenergia"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "activation energy",
          "word": "aktivaatioenergia"
        },
        {
          "code": "id",
          "lang": "Indonesian",
          "sense": "activation energy",
          "word": "energi aktivasi"
        },
        {
          "code": "ms",
          "lang": "Malay",
          "sense": "activation energy",
          "word": "tenaga pengaktifan"
        },
        {
          "code": "fa",
          "lang": "Persian",
          "roman": "enerži-ye aktivâsiyon",
          "sense": "activation energy",
          "word": "انرژی اکتیواسیون"
        },
        {
          "code": "ro",
          "lang": "Romanian",
          "sense": "activation energy",
          "tags": [
            "feminine"
          ],
          "word": "energie activantă"
        },
        {
          "code": "ro",
          "lang": "Romanian",
          "sense": "activation energy",
          "tags": [
            "feminine"
          ],
          "word": "energie de activare"
        },
        {
          "code": "sh",
          "lang": "Serbo-Croatian",
          "sense": "activation energy",
          "tags": [
            "feminine"
          ],
          "word": "aktivacijska energija"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "activation energy",
          "word": "aktiveringsenergi"
        },
        {
          "code": "tl",
          "lang": "Tagalog",
          "sense": "activation energy",
          "word": "sabilusing kusog"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "activation energy",
          "word": "aktivasyon enerjisi"
        }
      ]
    }
  ],
  "word": "activation energy"
}
{
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      "tags": [
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "The energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy. A small push given to a stable but top-heavy object may cause it to fall over; the potential energy released during the fall was present in the system all along but could not be realized as long as the object was upright and balanced."
      ],
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        [
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          "initiate"
        ],
        [
          "reaction",
          "reaction"
        ],
        [
          "fuse",
          "fuse"
        ],
        [
          "firecracker",
          "firecracker"
        ]
      ],
      "raw_glosses": [
        "(physical chemistry, physics) The energy required to initiate a reaction. For example, the flame from the fuse of a firecracker provides a small initial amount of energy, after which the explosive reaction proceeds by itself, releasing a considerably larger quantity of energy. A small push given to a stable but top-heavy object may cause it to fall over; the potential energy released during the fall was present in the system all along but could not be realized as long as the object was upright and balanced."
      ],
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  "translations": [
    {
      "code": "af",
      "lang": "Afrikaans",
      "sense": "activation energy",
      "word": "aktiveringsenergie"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "activation energy",
      "word": "aktivoitumisenergia"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "activation energy",
      "word": "aktivaatioenergia"
    },
    {
      "code": "id",
      "lang": "Indonesian",
      "sense": "activation energy",
      "word": "energi aktivasi"
    },
    {
      "code": "ms",
      "lang": "Malay",
      "sense": "activation energy",
      "word": "tenaga pengaktifan"
    },
    {
      "code": "fa",
      "lang": "Persian",
      "roman": "enerži-ye aktivâsiyon",
      "sense": "activation energy",
      "word": "انرژی اکتیواسیون"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "activation energy",
      "tags": [
        "feminine"
      ],
      "word": "energie activantă"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "activation energy",
      "tags": [
        "feminine"
      ],
      "word": "energie de activare"
    },
    {
      "code": "sh",
      "lang": "Serbo-Croatian",
      "sense": "activation energy",
      "tags": [
        "feminine"
      ],
      "word": "aktivacijska energija"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "activation energy",
      "word": "aktiveringsenergi"
    },
    {
      "code": "tl",
      "lang": "Tagalog",
      "sense": "activation energy",
      "word": "sabilusing kusog"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "activation energy",
      "word": "aktivasyon enerjisi"
    }
  ],
  "word": "activation energy"
}

This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2024-05-15 from the enwiktionary dump dated 2024-05-02 using wiktextract (8203a16 and 304864d). 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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