"preplanetesimal" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "planetesimal"
      },
      "expansion": "pre- + planetesimal",
      "name": "prefix"
    }
  ],
  "etymology_text": "From pre- + planetesimal.",
  "forms": [
    {
      "form": "preplanetesimals",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "preplanetesimal (plural preplanetesimals)",
      "name": "en-noun"
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  "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"
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          "source": "w"
        },
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          "name": "English terms prefixed with pre-",
          "parents": [],
          "source": "w"
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          "source": "w"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A conglomeration of material that will form a planetesimal"
      ],
      "id": "en-preplanetesimal-en-noun-Krj5z6nh",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "conglomeration",
          "conglomeration"
        ],
        [
          "planetesimal",
          "planetesimal"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A conglomeration of material that will form a planetesimal"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "word": "preplanetesimal"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "planetesimal"
      },
      "expansion": "pre- + planetesimal",
      "name": "prefix"
    }
  ],
  "etymology_text": "From pre- + planetesimal.",
  "forms": [
    {
      "form": "preplanetesimals",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "preplanetesimal (plural preplanetesimals)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "en:Astronomy"
      ],
      "glosses": [
        "A conglomeration of material that will form a planetesimal"
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "conglomeration",
          "conglomeration"
        ],
        [
          "planetesimal",
          "planetesimal"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A conglomeration of material that will form a planetesimal"
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ]
    }
  ],
  "word": "preplanetesimal"
}