{
  "id": "sand.material",
  "term": "sand",
  "sense": "material",
  "pos": "noun",
  "status": "review",
  "level": 10,
  "arena": "sand",
  "domain": "earth",
  "style": null,
  "definition": "small pieces of matter that together form a surface in a place",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "matter.substance",
      "size.measurement",
      "piece.portion",
      "small.size",
      "space.extent",
      "surface.exterior",
      "form.shape"
    ],
    "interaction": "small pieces of matter, each with limited extent, arrange together in space to form a continuous surface with a shape not present in any individual piece.",
    "novel_properties": [
      "collective surface formation",
      "emergent shape",
      "granular continuity"
    ]
  },
  "examples": [
    {
      "text": "The Sahara Desert spans 9.2 million square kilometers, its surface shaped by wind-driven quartz grains under persistent erosion.",
      "domain": "geography"
    },
    {
      "text": "The 1941 construction of the Mulholland Dam used 600,000 tons of concrete mixed with beach sand from the nearby Santa Clara River.",
      "domain": "engineering"
    },
    {
      "text": "Children at Tokyo's Haneda Airport playground mold volcanic sand from Mount Fuji into shapes that collapse under their own weight.",
      "domain": "everyday life"
    }
  ],
  "relations": [
    {
      "id": "substance.material",
      "note": "is-a",
      "type": "is-a"
    }
  ],
  "used_by": [
    "beach.geographic"
  ],
  "forms": [
    "sand",
    "sanded",
    "sanding",
    "sands"
  ],
  "closed": true,
  "provenance": {
    "author": "openrouter:openai/gpt-oss-120b",
    "date": "2026-07-29",
    "confidence": 0.6,
    "reconciled": {
      "by": "openrouter:qwen/qwen3-235b-a22b-2507",
      "date": "2026-07-31",
      "changed": "components",
      "note": "Added form.shape as it is required to explain how the surface has a defined shape emerging from the arrangement of pieces. Definition remains accurate and does not require rewording."
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-sand.material"
}