"planometer" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": ":af",
        "3": "plano-",
        "4": "-meter",
        "text": "+",
        "tree": "1"
      },
      "expansion": "From plano- + -meter.",
      "name": "ety"
    }
  ],
  "etymology_text": "From plano- + -meter.",
  "forms": [
    {
      "form": "planometers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "planometer (plural planometers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries referencing missing etymons",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymology texts",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with etymon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with plano-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -meter",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages using etymon with no ID",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymology trees",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with etymon",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Measuring instruments",
          "orig": "en:Measuring instruments",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A flat, metal plate used for estimating the flatness of a machined part; a surface plate."
      ],
      "id": "en-planometer-en-noun-HtGfVWEu",
      "links": [
        [
          "plate",
          "plate"
        ],
        [
          "flatness",
          "flatness"
        ],
        [
          "machined",
          "machined"
        ],
        [
          "part",
          "part"
        ],
        [
          "surface plate",
          "surface plate"
        ]
      ],
      "related": [
        {
          "word": "planometric"
        },
        {
          "word": "planometry"
        }
      ]
    }
  ],
  "word": "planometer"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": ":af",
        "3": "plano-",
        "4": "-meter",
        "text": "+",
        "tree": "1"
      },
      "expansion": "From plano- + -meter.",
      "name": "ety"
    }
  ],
  "etymology_text": "From plano- + -meter.",
  "forms": [
    {
      "form": "planometers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "planometer (plural planometers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "planometric"
    },
    {
      "word": "planometry"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries referencing missing etymons",
        "English entries with etymology texts",
        "English entries with etymology trees",
        "English entries with etymon",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms derived from the Proto-Indo-European root *meh₁-",
        "English terms prefixed with plano-",
        "English terms suffixed with -meter",
        "Pages using etymon with no ID",
        "Pages with 1 entry",
        "Pages with entries",
        "Pages with etymology trees",
        "Pages with etymon",
        "en:Measuring instruments"
      ],
      "glosses": [
        "A flat, metal plate used for estimating the flatness of a machined part; a surface plate."
      ],
      "links": [
        [
          "plate",
          "plate"
        ],
        [
          "flatness",
          "flatness"
        ],
        [
          "machined",
          "machined"
        ],
        [
          "part",
          "part"
        ],
        [
          "surface plate",
          "surface plate"
        ]
      ]
    }
  ],
  "word": "planometer"
}