"femtometre" meaning in English

{
  "etymology_templates": [
    {
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        "2": "femto",
        "3": "metre"
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      "expansion": "femto- + metre",
      "name": "prefix"
    }
  ],
  "etymology_text": "From femto- + metre.",
  "forms": [
    {
      "form": "femtometres",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {},
      "expansion": "femtometre (plural femtometres)",
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  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
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          "source": "w"
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          "kind": "other",
          "name": "English terms prefixed with femto-",
          "parents": [],
          "source": "w"
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          "kind": "other",
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          "source": "w"
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          "kind": "other",
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          "source": "w"
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          "kind": "other",
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          "parents": [],
          "source": "w"
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        {
          "kind": "other",
          "name": "Terms with Italian translations",
          "parents": [],
          "source": "w"
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        {
          "kind": "other",
          "name": "Terms with Japanese translations",
          "parents": [],
          "source": "w"
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        {
          "kind": "other",
          "name": "Terms with Portuguese translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Romanian translations",
          "parents": [],
          "source": "w"
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        {
          "kind": "other",
          "name": "Terms with Spanish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Turkish translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "SI units",
          "orig": "en:SI units",
          "parents": [
            "Units of measure",
            "Metrology",
            "Quantity",
            "Applied sciences",
            "Mathematics",
            "Sciences",
            "Formal sciences",
            "All topics",
            "Fundamental"
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          "source": "w"
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      ],
      "derived": [
        {
          "word": "femtometric"
        }
      ],
      "glosses": [
        "10⁻¹⁵ of a metre. Symbol: fm"
      ],
      "id": "en-femtometre-en-noun-IDxIFWEP",
      "links": [
        [
          "metre",
          "metre"
        ],
        [
          "fm",
          "fm"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "US"
          ],
          "word": "femtometer"
        }
      ],
      "translations": [
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "femtométǎr",
          "sense": "10-15 of a metre",
          "tags": [
            "masculine"
          ],
          "word": "фемтоме́тър"
        },
        {
          "code": "cs",
          "lang": "Czech",
          "sense": "10-15 of a metre",
          "tags": [
            "masculine"
          ],
          "word": "femtometr"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "10-15 of a metre",
          "tags": [
            "masculine"
          ],
          "word": "femtomètre"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "10-15 of a metre",
          "tags": [
            "masculine",
            "neuter"
          ],
          "word": "Femtometer"
        },
        {
          "code": "el",
          "lang": "Greek",
          "roman": "femtómetro",
          "sense": "10-15 of a metre",
          "word": "φεμτόμετρο"
        },
        {
          "code": "it",
          "lang": "Italian",
          "sense": "10-15 of a metre",
          "tags": [
            "masculine"
          ],
          "word": "femtometro"
        },
        {
          "code": "ja",
          "lang": "Japanese",
          "roman": "femutomētoru",
          "sense": "10-15 of a metre",
          "word": "フェムトメートル"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "10-15 of a metre",
          "tags": [
            "masculine"
          ],
          "word": "femtômetro"
        },
        {
          "code": "ro",
          "lang": "Romanian",
          "sense": "10-15 of a metre",
          "tags": [
            "masculine"
          ],
          "word": "femtometru"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "10-15 of a metre",
          "tags": [
            "masculine"
          ],
          "word": "femtómetro"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "10-15 of a metre",
          "word": "femtometre"
        }
      ],
      "wikipedia": [
        "femtometre"
      ]
    }
  ],
  "word": "femtometre"
}

{
  "derived": [
    {
      "word": "femtometric"
    }
  ],
  "etymology_templates": [
    {
      "args": {
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      },
      "expansion": "femto- + metre",
      "name": "prefix"
    }
  ],
  "etymology_text": "From femto- + metre.",
  "forms": [
    {
      "form": "femtometres",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "femtometre (plural femtometres)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "Greek terms with redundant script codes",
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        "Terms with Bulgarian translations",
        "Terms with Czech translations",
        "Terms with French translations",
        "Terms with German translations",
        "Terms with Greek translations",
        "Terms with Italian translations",
        "Terms with Japanese translations",
        "Terms with Portuguese translations",
        "Terms with Romanian translations",
        "Terms with Spanish translations",
        "Terms with Turkish translations",
        "en:SI units"
      ],
      "glosses": [
        "10⁻¹⁵ of a metre. Symbol: fm"
      ],
      "links": [
        [
          "metre",
          "metre"
        ],
        [
          "fm",
          "fm"
        ]
      ],
      "wikipedia": [
        "femtometre"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "US"
      ],
      "word": "femtometer"
    }
  ],
  "translations": [
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "femtométǎr",
      "sense": "10-15 of a metre",
      "tags": [
        "masculine"
      ],
      "word": "фемтоме́тър"
    },
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "10-15 of a metre",
      "tags": [
        "masculine"
      ],
      "word": "femtometr"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "10-15 of a metre",
      "tags": [
        "masculine"
      ],
      "word": "femtomètre"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "10-15 of a metre",
      "tags": [
        "masculine",
        "neuter"
      ],
      "word": "Femtometer"
    },
    {
      "code": "el",
      "lang": "Greek",
      "roman": "femtómetro",
      "sense": "10-15 of a metre",
      "word": "φεμτόμετρο"
    },
    {
      "code": "it",
      "lang": "Italian",
      "sense": "10-15 of a metre",
      "tags": [
        "masculine"
      ],
      "word": "femtometro"
    },
    {
      "code": "ja",
      "lang": "Japanese",
      "roman": "femutomētoru",
      "sense": "10-15 of a metre",
      "word": "フェムトメートル"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "10-15 of a metre",
      "tags": [
        "masculine"
      ],
      "word": "femtômetro"
    },
    {
      "code": "ro",
      "lang": "Romanian",
      "sense": "10-15 of a metre",
      "tags": [
        "masculine"
      ],
      "word": "femtometru"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "10-15 of a metre",
      "tags": [
        "masculine"
      ],
      "word": "femtómetro"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "10-15 of a metre",
      "word": "femtometre"
    }
  ],
  "word": "femtometre"
}