"sphaera recta" meaning in English

{
  "antonyms": [
    {
      "word": "sphaera obliqua"
    }
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        "4": "sphere”, “globe of the heavens"
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  "etymology_text": "First attested in 1932; Latin: sphaera (“sphere”, “globe of the heavens”) + rēcta (feminine nominative singular of rēctus, “right”, “upright”) = “upright sphere”.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "examples": [
        {
          "ref": "1932, Sir Thomas Little Heath, Greek Astronomy, page 135",
          "text": "There is a certain region lying to the south of us which is said to be under the equator, where the poles fall on the horizon, and the sphere of the universe stands straight up, as it were (sphaera recta).",
          "type": "quotation"
        }
      ],
      "glosses": [
        "An idealised conception of the celestial sphere in which the celestial equator is perpendicular to the local horizon and the Sun reaches the zenith at its highest point."
      ],
      "id": "en-sphaera_recta-en-noun-qBuyEAes",
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          "idealised",
          "idealize#English"
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          "conception",
          "conception#English"
        ],
        [
          "celestial sphere",
          "celestial sphere#English"
        ],
        [
          "celestial equator",
          "celestial equator#English"
        ],
        [
          "perpendicular",
          "perpendicular#English"
        ],
        [
          "horizon",
          "horizon#English"
        ],
        [
          "Sun",
          "Sun#English"
        ],
        [
          "zenith",
          "zenith#English"
        ]
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        "(astronomy) An idealised conception of the celestial sphere in which the celestial equator is perpendicular to the local horizon and the Sun reaches the zenith at its highest point."
      ],
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        "singular-only"
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  ],
  "sounds": [
    {
      "ipa": "/ˈsfiːɹə ˈɹɛktə/"
    }
  ],
  "word": "sphaera recta"
}

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    {
      "word": "sphaera obliqua"
    }
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  "etymology_text": "First attested in 1932; Latin: sphaera (“sphere”, “globe of the heavens”) + rēcta (feminine nominative singular of rēctus, “right”, “upright”) = “upright sphere”.",
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          "type": "quotation"
        }
      ],
      "glosses": [
        "An idealised conception of the celestial sphere in which the celestial equator is perpendicular to the local horizon and the Sun reaches the zenith at its highest point."
      ],
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          "horizon",
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          "Sun#English"
        ],
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          "zenith",
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        "(astronomy) An idealised conception of the celestial sphere in which the celestial equator is perpendicular to the local horizon and the Sun reaches the zenith at its highest point."
      ],
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        "singular",
        "singular-only"
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  "sounds": [
    {
      "ipa": "/ˈsfiːɹə ˈɹɛktə/"
    }
  ],
  "word": "sphaera recta"
}