"nonplacental" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "placental"
      },
      "expansion": "non- + placental",
      "name": "prefix"
    }
  ],
  "etymology_text": "From non- + placental.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "nonplacental (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with non-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Polish translations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Not placental."
      ],
      "id": "en-nonplacental-en-adj-dCG7bFvh",
      "links": [
        [
          "placental",
          "placental"
        ]
      ],
      "tags": [
        "not-comparable"
      ],
      "translations": [
        {
          "code": "pl",
          "lang": "Polish",
          "note": "no equivalent term in Polish",
          "sense": "Translations"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "but see bezłożyskowiec"
        }
      ]
    }
  ],
  "word": "nonplacental"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "non",
        "3": "placental"
      },
      "expansion": "non- + placental",
      "name": "prefix"
    }
  ],
  "etymology_text": "From non- + placental.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "nonplacental (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with non-",
        "English uncomparable adjectives",
        "Pages with 1 entry",
        "Terms with Polish translations",
        "Translation table header lacks gloss"
      ],
      "glosses": [
        "Not placental."
      ],
      "links": [
        [
          "placental",
          "placental"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "translations": [
    {
      "code": "pl",
      "lang": "Polish",
      "note": "no equivalent term in Polish",
      "sense": "Translations"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "but see bezłożyskowiec"
    }
  ],
  "word": "nonplacental"
}