{
  "id": "engine.tool",
  "term": "engine",
  "sense": "tool",
  "pos": "noun",
  "status": "review",
  "level": 6,
  "arena": "engine",
  "domain": "everyday",
  "style": null,
  "definition": "a device that changes energy into motion",
  "folk_gloss": null,
  "emergence": {
    "components": [
      "device.tool",
      "energy.capacity",
      "motion.movement",
      "change.process"
    ],
    "interaction": "the device changes energy into motion",
    "novel_properties": [
      "conversion of energy to motion",
      "directed mechanical output",
      "controlled change through energy flow"
    ]
  },
  "examples": [
    {
      "text": "The internal combustion engine in a 1965 Ford Mustang converts gasoline energy into rotational motion at the crankshaft.",
      "domain": "engineering"
    },
    {
      "text": "A hydroelectric turbine at Niagara Falls transforms flowing water's kinetic energy into mechanical rotation to drive generators.",
      "domain": "physics"
    },
    {
      "text": "The bacterial flagellar motor in E. coli uses proton gradients to spin its tail and propel the cell forward.",
      "domain": "biology"
    }
  ],
  "relations": [],
  "used_by": [],
  "forms": [
    "engine",
    "engines"
  ],
  "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 change.process (L1) as a constitutive component since the transformation of energy into motion inherently involves a process of change, which was implicitly required by the definition but missin"
    }
  },
  "canonical": "https://emergencemachine.com/tools/lexicon/what-is-the-meaning-of-engine.tool"
}