"rock flour" meaning in English

{
  "forms": [
    {
      "form": "rock flours",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "rock flour (countable and uncountable, plural rock flours)",
      "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": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rocks",
          "orig": "en:Rocks",
          "parents": [
            "Geology",
            "Natural materials",
            "Earth sciences",
            "Materials",
            "Nature",
            "Sciences",
            "Manufacturing",
            "All topics",
            "Human activity",
            "Fundamental",
            "Human behaviour",
            "Human"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Fine-grained, silt-sized particles of rock generated by mechanical grinding of bedrock by glacial erosion or artificially."
      ],
      "id": "en-rock_flour-en-noun-khwssR-q",
      "links": [
        [
          "silt",
          "silt"
        ],
        [
          "particle",
          "particle"
        ],
        [
          "rock",
          "rock"
        ],
        [
          "mechanical",
          "mechanical"
        ],
        [
          "grind",
          "grind"
        ],
        [
          "bedrock",
          "bedrock"
        ],
        [
          "glacial",
          "glacial"
        ],
        [
          "erosion",
          "erosion"
        ],
        [
          "artificial",
          "artificial"
        ]
      ],
      "related": [
        {
          "word": "glacial milk"
        }
      ],
      "synonyms": [
        {
          "word": "glacial flour"
        },
        {
          "word": "stonemeal"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "rock flour"
      ]
    }
  ],
  "word": "rock flour"
}

{
  "forms": [
    {
      "form": "rock flours",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "rock flour (countable and uncountable, plural rock flours)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "glacial milk"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:Rocks"
      ],
      "glosses": [
        "Fine-grained, silt-sized particles of rock generated by mechanical grinding of bedrock by glacial erosion or artificially."
      ],
      "links": [
        [
          "silt",
          "silt"
        ],
        [
          "particle",
          "particle"
        ],
        [
          "rock",
          "rock"
        ],
        [
          "mechanical",
          "mechanical"
        ],
        [
          "grind",
          "grind"
        ],
        [
          "bedrock",
          "bedrock"
        ],
        [
          "glacial",
          "glacial"
        ],
        [
          "erosion",
          "erosion"
        ],
        [
          "artificial",
          "artificial"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "rock flour"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "glacial flour"
    },
    {
      "word": "stonemeal"
    }
  ],
  "word": "rock flour"
}