"carbon planet" meaning in English

{
  "etymology_text": "Proposed as a theoretical planet by Marc Kuchner.",
  "forms": [
    {
      "form": "carbon planets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "carbon planet (plural carbon planets)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Carbon",
          "orig": "en:Carbon",
          "parents": [
            "Carbon group elements",
            "Chemical elements",
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Types of planets",
          "orig": "en:Types of planets",
          "parents": [
            "Planets",
            "Celestial bodies",
            "Space",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "coordinate_terms": [
        {
          "word": "silicon planet"
        },
        {
          "word": "silicate planet"
        },
        {
          "word": "super-Earth"
        },
        {
          "word": "sub-Earth"
        },
        {
          "sense": "giant planet",
          "word": "gas giant"
        },
        {
          "sense": "giant planet",
          "word": "ice giant"
        }
      ],
      "glosses": [
        "A theoretical type of terrestrial planet that could form, if protoplanetary discs are carbon-rich and oxygen-poor."
      ],
      "hypernyms": [
        {
          "word": "major planet"
        },
        {
          "word": "planet"
        },
        {
          "word": "terrestrial planet"
        }
      ],
      "id": "en-carbon_planet-en-noun-4hT42J-8",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "terrestrial planet",
          "terrestrial planet"
        ],
        [
          "protoplanetary disc",
          "protoplanetary disc"
        ],
        [
          "carbon-rich",
          "carbon-rich"
        ],
        [
          "oxygen-poor",
          "oxygen-poor"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A theoretical type of terrestrial planet that could form, if protoplanetary discs are carbon-rich and oxygen-poor."
      ],
      "related": [
        {
          "word": "dwarf planet"
        },
        {
          "word": "minor planet"
        }
      ],
      "synonyms": [
        {
          "word": "carbide planet"
        },
        {
          "word": "diamond planet"
        }
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "wikipedia": [
        "Marc Kuchner"
      ]
    }
  ],
  "word": "carbon planet"
}

{
  "coordinate_terms": [
    {
      "word": "silicon planet"
    },
    {
      "word": "silicate planet"
    },
    {
      "sense": "giant planet",
      "word": "gas giant"
    },
    {
      "sense": "giant planet",
      "word": "ice giant"
    },
    {
      "word": "super-Earth"
    },
    {
      "word": "sub-Earth"
    }
  ],
  "etymology_text": "Proposed as a theoretical planet by Marc Kuchner.",
  "forms": [
    {
      "form": "carbon planets",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "carbon planet (plural carbon planets)",
      "name": "en-noun"
    }
  ],
  "hypernyms": [
    {
      "word": "major planet"
    },
    {
      "word": "planet"
    },
    {
      "word": "terrestrial planet"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "dwarf planet"
    },
    {
      "word": "minor planet"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Astronomy",
        "en:Carbon",
        "en:Types of planets"
      ],
      "glosses": [
        "A theoretical type of terrestrial planet that could form, if protoplanetary discs are carbon-rich and oxygen-poor."
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "terrestrial planet",
          "terrestrial planet"
        ],
        [
          "protoplanetary disc",
          "protoplanetary disc"
        ],
        [
          "carbon-rich",
          "carbon-rich"
        ],
        [
          "oxygen-poor",
          "oxygen-poor"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A theoretical type of terrestrial planet that could form, if protoplanetary discs are carbon-rich and oxygen-poor."
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "wikipedia": [
        "Marc Kuchner"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "carbide planet"
    },
    {
      "word": "diamond planet"
    }
  ],
  "word": "carbon planet"
}