{
  "id": "air.material",
  "term": "air",
  "sense": "material",
  "pos": "noun",
  "status": "review",
  "level": 4,
  "arena": "air",
  "domain": "matter.substance",
  "style": null,
  "definition": "A matter that flows in space",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "matter.substance",
      "flow.movement",
      "space.extent"
    ],
    "interaction": "Matter flows together in space",
    "novel_properties": [
      "continuous medium",
      "pressure variation",
      "transmission of sound"
    ]
  },
  "examples": [
    {
      "text": "The 2023 heatwave in Phoenix saw air temperatures exceed 45°C for 19 consecutive days.",
      "domain": "meteorology"
    },
    {
      "text": "Air flows through the Large Hadron Collider’s beam pipes at 10^-13 atm to prevent particle scattering.",
      "domain": "physics"
    },
    {
      "text": "In 1977, NASA's Voyager 1 detected air-like plasma flow beyond the heliosphere.",
      "domain": "space_science"
    }
  ],
  "relations": [
    {
      "id": "substance.material",
      "note": "is-a",
      "type": "is-a"
    }
  ],
  "used_by": [
    "airport.transport",
    "blue.color",
    "weather.atmospheric",
    "wireless.electrical"
  ],
  "forms": [
    "air",
    "aired",
    "airing",
    "airs"
  ],
  "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 missing 'space.extent' as constitutive component since 'air' as flowing matter inherently depends on space. Definition remained correct and was not altered."
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-air.material"
}