second to the power minus one

{
  "id": "NISTu3e-1/1",
  "unitsml_id": "u:second_to_the_power_minus_one",
  "name": "second to the power minus one",
  "names": [
    {
      "value": "second to the power minus one",
      "lang": "en"
    }
  ],
  "symbols": {
    "unicode": "s⁻¹",
    "ascii": "s^-1",
    "html": "s<sup>-1</sup>",
    "latex": "\\ensuremath{\\mathrm{s^{-1}}}",
    "id": "s^-1",
    "mathml": "<msup><mrow><mi mathvariant='normal'>s</mi></mrow><mrow><mo>&#x2212;</mo><mn>1</mn></mrow></msup>"
  },
  "identifiers": [
    {
      "type": "nist",
      "id": "NISTu3e-1/1"
    },
    {
      "type": "unitsml",
      "id": "u:second_to_the_power_minus_one"
    }
  ],
  "references": [],
  "short": "second_to_the_power_minus_one",
  "root": false,
  "composite": true,
  "quantities": [
    {
      "id": "NISTq112",
      "name": "rotational frequency",
      "type": "derived"
    },
    {
      "id": "NISTq113",
      "name": "angular frequency",
      "type": "derived"
    },
    {
      "id": "NISTq120",
      "name": "damping coefficient",
      "type": "derived"
    },
    {
      "id": "NISTq189",
      "name": "emission rate",
      "type": "derived"
    }
  ],
  "dimension": {
    "id": "NISTd24",
    "name": "frequency",
    "expression": "T-1",
    "components": [
      {
        "key": "time",
        "symbol": "T",
        "power": -1
      }
    ],
    "dimensionless": false
  },
  "scale": {
    "id": "continuous_ratio",
    "name": "continuous ratio scale"
  },
  "systems": [
    {
      "id": "SI_derived_non-special",
      "name": "SI-derived units non-special",
      "short": "si-derived-nonspecial",
      "acceptable": true
    },
    {
      "id": "SI_compatible",
      "name": "Units compatible with SI",
      "short": "si-compatible",
      "acceptable": true
    }
  ],
  "root_units": [
    {
      "power": -1,
      "unit": {
        "id": "NISTu3",
        "name": "second",
        "symbol": "″"
      },
      "prefix": null
    }
  ]
}