{
  "id": "glass.material",
  "term": "glass",
  "sense": "material",
  "pos": "noun",
  "status": "review",
  "level": 9,
  "arena": "emergencelexicon",
  "domain": "common",
  "style": null,
  "definition": "a material that is transparent",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "material.physical",
      "structure.arrangement",
      "transparent.visual"
    ],
    "interaction": "the material has an arrangement that enables transparency.",
    "novel_properties": [
      "transparency",
      "rigid, non-crystalline structure"
    ]
  },
  "examples": [
    {
      "text": "The Corning Museum of Glass displays a 2,000-year-old Roman glass cup that still transmits light clearly.",
      "domain": "archaeology"
    },
    {
      "text": "Fiber-optic cables in the MAREA transatlantic system use ultra-pure glass to transmit data with minimal signal loss.",
      "domain": "engineering"
    },
    {
      "text": "The glass panes in the Louvre Pyramid remain transparent after decades of exposure to Parisian rain and pollution.",
      "domain": "architecture"
    }
  ],
  "relations": [],
  "used_by": [
    "camera.visual"
  ],
  "forms": [
    "glass",
    "glasses"
  ],
  "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": "definition",
      "note": "Added transparent.visual as a component since transparency is constitutive of the material sense of 'glass'. The original definition relied on it implicitly."
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-glass.material"
}