"proemptosis" meaning in English

{
  "etymology_templates": [
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      "args": {
        "1": "en",
        "2": "la-new",
        "3": "proemptōsis"
      },
      "expansion": "New Latin proemptōsis",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "προ-",
        "4": "",
        "5": "before"
      },
      "expansion": "Ancient Greek προ- (pro-, “before”)",
      "name": "der"
    }
  ],
  "etymology_text": "From New Latin proemptōsis, from Ancient Greek προ- (pro-, “before”) + ἔμπτωσις (émptōsis, “falling”).",
  "head_templates": [
    {
      "args": {
        "1": "!"
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      "expansion": "proemptosis (plural not attested)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "kind": "other",
          "langcode": "en",
          "name": "Time",
          "orig": "en:Time",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The addition of a leap day to the lunar calendar."
      ],
      "id": "en-proemptosis-en-noun-cEXapmGg",
      "links": [
        [
          "leap day",
          "leap day"
        ],
        [
          "lunar calendar",
          "lunar calendar"
        ]
      ],
      "raw_glosses": [
        "(historical) The addition of a leap day to the lunar calendar."
      ],
      "related": [
        {
          "word": "metemptosis"
        },
        {
          "word": "intercalation"
        },
        {
          "word": "leap day"
        }
      ],
      "tags": [
        "historical",
        "no-plural"
      ]
    }
  ],
  "word": "proemptosis"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "la-new",
        "3": "proemptōsis"
      },
      "expansion": "New Latin proemptōsis",
      "name": "bor"
    },
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "προ-",
        "4": "",
        "5": "before"
      },
      "expansion": "Ancient Greek προ- (pro-, “before”)",
      "name": "der"
    }
  ],
  "etymology_text": "From New Latin proemptōsis, from Ancient Greek προ- (pro-, “before”) + ἔμπτωσις (émptōsis, “falling”).",
  "head_templates": [
    {
      "args": {
        "1": "!"
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      "expansion": "proemptosis (plural not attested)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "metemptosis"
    },
    {
      "word": "intercalation"
    },
    {
      "word": "leap day"
    }
  ],
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      "glosses": [
        "The addition of a leap day to the lunar calendar."
      ],
      "links": [
        [
          "leap day",
          "leap day"
        ],
        [
          "lunar calendar",
          "lunar calendar"
        ]
      ],
      "raw_glosses": [
        "(historical) The addition of a leap day to the lunar calendar."
      ],
      "tags": [
        "historical",
        "no-plural"
      ]
    }
  ],
  "word": "proemptosis"
}