"acardiac" meaning in English

{
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        "3": "ἀκάρδιος",
        "4": "",
        "5": "without a heart"
      },
      "expansion": "Ancient Greek ἀκάρδιος (akárdios, “without a heart”)",
      "name": "uder"
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      "args": {
        "1": "en",
        "2": "",
        "3": "ac"
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      "expansion": "by surface analysis, a- + cardi- + -ac",
      "name": "surf"
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  "etymology_text": "From Ancient Greek ἀκάρδιος (akárdios, “without a heart”) + -ac, after cardiac; by surface analysis, a- + cardi- + -ac.",
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      "expansion": "acardiac (not comparable)",
      "name": "en-adj"
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
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        {
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          "source": "w"
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          "name": "Anatomy",
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      ],
      "derived": [
        {
          "word": "acardiac twin"
        },
        {
          "word": "acardiac twinning"
        }
      ],
      "examples": [
        {
          "ref": "1831, Marshall Hall, A Critical and Experimental Essay on the Circulation of the Blood, page 76:",
          "text": "The fact of a perfect circulation in acardiac fœtuses and acardiac animals, seems strongly to indicate an important influence in the arteries.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Lacking a heart."
      ],
      "id": "en-acardiac-en-adj-OWLRxqDE",
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          "medicine",
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          "anatomy",
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          "heart",
          "heart"
        ]
      ],
      "raw_glosses": [
        "(medicine, anatomy) Lacking a heart."
      ],
      "related": [
        {
          "tags": [
            "noun"
          ],
          "word": "acardia"
        },
        {
          "word": "anencephalic"
        }
      ],
      "synonyms": [
        {
          "word": "heartless"
        }
      ],
      "tags": [
        "not-comparable"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ],
      "translations": [
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "lacking a heart",
          "word": "acardíaco"
        }
      ]
    }
  ],
  "word": "acardiac"
}

{
  "derived": [
    {
      "word": "acardiac twin"
    },
    {
      "word": "acardiac twinning"
    }
  ],
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      "name": "uder"
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      "expansion": "by surface analysis, a- + cardi- + -ac",
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  "etymology_text": "From Ancient Greek ἀκάρδιος (akárdios, “without a heart”) + -ac, after cardiac; by surface analysis, a- + cardi- + -ac.",
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  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "tags": [
        "noun"
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      "word": "acardia"
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      "word": "anencephalic"
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          "ref": "1831, Marshall Hall, A Critical and Experimental Essay on the Circulation of the Blood, page 76:",
          "text": "The fact of a perfect circulation in acardiac fœtuses and acardiac animals, seems strongly to indicate an important influence in the arteries.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Lacking a heart."
      ],
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          "anatomy",
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          "heart"
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      "raw_glosses": [
        "(medicine, anatomy) Lacking a heart."
      ],
      "synonyms": [
        {
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        }
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        "not-comparable"
      ],
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        "anatomy",
        "medicine",
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  "translations": [
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "lacking a heart",
      "word": "acardíaco"
    }
  ],
  "word": "acardiac"
}