lookback time in English

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{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "lookback time",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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        {
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          "name": "Astronomy",
          "orig": "en:Astronomy",
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            "Space",
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            "Nature",
            "Fundamental"
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        {
          "kind": "topical",
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          "name": "Cosmology",
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            "Sciences",
            "Space",
            "All topics",
            "Nature",
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        }
      ],
      "glosses": [
        "The amount of time elapsed between the moment that light is detected on Earth and the moment it was originally emitted by the source."
      ],
      "id": "en-lookback_time-en-noun-YZVgSMHD",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "cosmology",
          "cosmology"
        ],
        [
          "amount",
          "amount"
        ],
        [
          "time",
          "time"
        ],
        [
          "elapsed",
          "elapsed"
        ],
        [
          "moment",
          "moment"
        ],
        [
          "light",
          "light"
        ],
        [
          "detected",
          "detected"
        ],
        [
          "Earth",
          "Earth"
        ],
        [
          "originally",
          "originally"
        ],
        [
          "emitted",
          "emitted"
        ],
        [
          "source",
          "source"
        ]
      ],
      "raw_glosses": [
        "(astronomy, cosmology) The amount of time elapsed between the moment that light is detected on Earth and the moment it was originally emitted by the source."
      ],
      "topics": [
        "astronomy",
        "cosmology",
        "natural-sciences"
      ]
    }
  ],
  "word": "lookback time"
}

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{
  "head_templates": [
    {
      "args": {
        "1": "?"
      },
      "expansion": "lookback time",
      "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",
        "English nouns with unknown or uncertain plurals",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Astronomy",
        "en:Cosmology"
      ],
      "glosses": [
        "The amount of time elapsed between the moment that light is detected on Earth and the moment it was originally emitted by the source."
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "cosmology",
          "cosmology"
        ],
        [
          "amount",
          "amount"
        ],
        [
          "time",
          "time"
        ],
        [
          "elapsed",
          "elapsed"
        ],
        [
          "moment",
          "moment"
        ],
        [
          "light",
          "light"
        ],
        [
          "detected",
          "detected"
        ],
        [
          "Earth",
          "Earth"
        ],
        [
          "originally",
          "originally"
        ],
        [
          "emitted",
          "emitted"
        ],
        [
          "source",
          "source"
        ]
      ],
      "raw_glosses": [
        "(astronomy, cosmology) The amount of time elapsed between the moment that light is detected on Earth and the moment it was originally emitted by the source."
      ],
      "topics": [
        "astronomy",
        "cosmology",
        "natural-sciences"
      ]
    }
  ],
  "word": "lookback time"
}

This page is a part of the kaikki.org machine-readable English dictionary. This dictionary is based on structured data extracted on 2025-01-03 from the enwiktionary dump dated 2025-01-01 using wiktextract (eaedd02 and 8fbd9e8). 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.

If you use this data in academic research, please cite Tatu Ylonen: Wiktextract: Wiktionary as Machine-Readable Structured Data, Proceedings of the 13th Conference on Language Resources and Evaluation (LREC), pp. 1317-1325, Marseille, 20-25 June 2022. Linking to the relevant page(s) under https://kaikki.org would also be greatly appreciated.

"lookback time" meaning in English

Noun