"microarcsecond" meaning in English

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      "expansion": "Etymology tree\nProto-Indo-European *mey-der.?\nAncient Greek μικρός (mikrós)der.\nEnglish micro-\nEnglish arcsecond\nEnglish microarcsecond\n[Appendix:Glossary#derived_terms|Derived]] from\", \"terms\" : [ { \"id\" : \"small\", \"children\" : [ { \"keyword_abbrev\" : \"der.\", \"keyword_label\" : \"Derived from\", \"terms\" : [ { \"is_uncertain\" : true, \"id\" : \"little\", \"children\" : [ ], \"status\" : \"ok\", \"lang_name\" : \"Proto-Indo-European\", \"term\" : \"*mey-\", \"lang\" : \"ine-pro\" } ], \"keyword\" : \"derived\" } ], \"status\" : \"ok\", \"lang_name\" : \"Ancient Greek\", \"term\" : \"μικρός\", \"lang\" : \"grc\" } ], \"keyword\" : \"derived\" } ], \"lang_name\" : \"English\", \"term\" : \"micro-\", \"status\" : \"ok\", \"lang\" : \"en\" }, { \"children\" : [ ], \"lang_name\" : \"English\", \"term\" : \"arcsecond\", \"status\" : \"missing\", \"lang\" : \"en\" } ], \"keyword_label\" : \"From\", \"is_group\" : true, \"keyword\" : \"affix\" } ], \"lang_name\" : \"English\", \"term\" : \"microarcsecond\", \"status\" : \"ok\", \"lang\" : \"en\" }\" data-lang=\"en\" data-title=\"microarcsecond\">\nFrom micro- + arcsecond.",
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  "etymology_text": "Etymology tree\nProto-Indo-European *mey-der.?\nAncient Greek μικρός (mikrós)der.\nEnglish micro-\nEnglish arcsecond\nEnglish microarcsecond\nFrom micro- + arcsecond.",
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      "form": "microarcseconds",
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        "plural"
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  "pos": "noun",
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      ],
      "glosses": [
        "A unit of angle; one millionth (10⁻⁶) of an arcsecond."
      ],
      "id": "en-microarcsecond-en-noun-ckr80jtG",
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          "unit",
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        [
          "angle",
          "angle"
        ],
        [
          "millionth",
          "millionth"
        ],
        [
          "arcsecond",
          "arcsecond"
        ]
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "lang_code": "fi",
          "sense": "a unit of angle; one millionth (10−6) of an arcsecond",
          "word": "mikrokaarisekunti"
        },
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          "lang": "French",
          "lang_code": "fr",
          "sense": "a unit of angle; one millionth (10−6) of an arcsecond",
          "tags": [
            "feminine"
          ],
          "word": "microseconde d’arc"
        }
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}

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  "etymology_text": "Etymology tree\nProto-Indo-European *mey-der.?\nAncient Greek μικρός (mikrós)der.\nEnglish micro-\nEnglish arcsecond\nEnglish microarcsecond\nFrom micro- + arcsecond.",
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        "A unit of angle; one millionth (10⁻⁶) of an arcsecond."
      ],
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          "arcsecond"
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  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "lang_code": "fi",
      "sense": "a unit of angle; one millionth (10−6) of an arcsecond",
      "word": "mikrokaarisekunti"
    },
    {
      "code": "fr",
      "lang": "French",
      "lang_code": "fr",
      "sense": "a unit of angle; one millionth (10−6) of an arcsecond",
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        "feminine"
      ],
      "word": "microseconde d’arc"
    }
  ],
  "word": "microarcsecond"
}