"microlumen" meaning in English

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      "expansion": "micro- + lumen",
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  "etymology_text": "From micro- + lumen.",
  "forms": [
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      "form": "microlumens",
      "tags": [
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      "expansion": "microlumen (plural microlumens)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "glosses": [
        "An extremely small lumen (cavity within a tube or tubular organ)."
      ],
      "id": "en-microlumen-en-noun-PFXU0agz",
      "links": [
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      "raw_glosses": [
        "(anatomy) An extremely small lumen (cavity within a tube or tubular organ)."
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    },
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          "ref": "1955, Sol Schneider, “Interferometer for Analyzing Mixtures of Hydrogen Isotopes”, in Review of Scientific Instruments, volume 26, number 6, →DOI, page 623:",
          "text": "Light-flux standards required are in the range of 10 microlumens and less.",
          "type": "quotation"
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      ],
      "glosses": [
        "One millionth (10⁻⁶) of a lumen (unit of luminous flux)."
      ],
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      "links": [
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          "lumen",
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  "word": "microlumen"
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  ],
  "etymology_text": "From micro- + lumen.",
  "forms": [
    {
      "form": "microlumens",
      "tags": [
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  "pos": "noun",
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      "glosses": [
        "An extremely small lumen (cavity within a tube or tubular organ)."
      ],
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      "raw_glosses": [
        "(anatomy) An extremely small lumen (cavity within a tube or tubular organ)."
      ],
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        "anatomy",
        "medicine",
        "sciences"
      ]
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        }
      ],
      "glosses": [
        "One millionth (10⁻⁶) of a lumen (unit of luminous flux)."
      ],
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    }
  ],
  "word": "microlumen"
}