"microdensitometer" meaning in English

{
  "etymology_links": [
    [
      "micro-",
      "micro-#English:_very_small"
    ],
    [
      "densitometer",
      "densitometer#English"
    ]
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": ":af",
        "3": "micro-<id:very small>",
        "4": "densitometer",
        "text": "+",
        "tree": "1"
      },
      "expansion": "From micro- + densitometer.",
      "name": "ety"
    },
    {
      "args": {
        "1": "en",
        "2": ":af",
        "3": "micro-<id:very small>",
        "4": "densitometer",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *mey-der.?\nAncient Greek μῑκρός (mīkrós)\nAncient Greek μῑκρο- (mīkro-)lbor.\nEnglish micro-\nEnglish densitometer\nEnglish microdensitometer\nFrom micro- + densitometer.",
      "name": "ety"
    }
  ],
  "etymology_text": "From micro- + densitometer.",
  "forms": [
    {
      "form": "microdensitometers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "microdensitometer (plural microdensitometers)",
      "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 micro- (very small)",
          "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"
        }
      ],
      "glosses": [
        "A very sensitive densitometer used for detecting and measuring faint spectral lines."
      ],
      "id": "en-microdensitometer-en-noun-FRH7evIR",
      "links": [
        [
          "sensitive",
          "sensitive"
        ],
        [
          "densitometer",
          "densitometer"
        ],
        [
          "spectral line",
          "spectral line"
        ]
      ],
      "related": [
        {
          "word": "microdensitometry"
        }
      ]
    }
  ],
  "word": "microdensitometer"
}

{
  "etymology_links": [
    [
      "micro-",
      "micro-#English:_very_small"
    ],
    [
      "densitometer",
      "densitometer#English"
    ]
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": ":af",
        "3": "micro-<id:very small>",
        "4": "densitometer",
        "text": "+",
        "tree": "1"
      },
      "expansion": "From micro- + densitometer.",
      "name": "ety"
    },
    {
      "args": {
        "1": "en",
        "2": ":af",
        "3": "micro-<id:very small>",
        "4": "densitometer",
        "text": "+",
        "tree": "1"
      },
      "expansion": "Etymology tree\nProto-Indo-European *mey-der.?\nAncient Greek μῑκρός (mīkrós)\nAncient Greek μῑκρο- (mīkro-)lbor.\nEnglish micro-\nEnglish densitometer\nEnglish microdensitometer\nFrom micro- + densitometer.",
      "name": "ety"
    }
  ],
  "etymology_text": "From micro- + densitometer.",
  "forms": [
    {
      "form": "microdensitometers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "microdensitometer (plural microdensitometers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "microdensitometry"
    }
  ],
  "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 *mey- (small)",
        "English terms prefixed with micro- (very small)",
        "Pages using etymon with no ID",
        "Pages with 1 entry",
        "Pages with entries",
        "Pages with etymology trees",
        "Pages with etymon"
      ],
      "glosses": [
        "A very sensitive densitometer used for detecting and measuring faint spectral lines."
      ],
      "links": [
        [
          "sensitive",
          "sensitive"
        ],
        [
          "densitometer",
          "densitometer"
        ],
        [
          "spectral line",
          "spectral line"
        ]
      ]
    }
  ],
  "word": "microdensitometer"
}