"rarefaction" meaning in All languages combined

{
  "antonyms": [
    {
      "word": "compression"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "frm",
        "3": "raréfaction"
      },
      "expansion": "Middle French raréfaction",
      "name": "uder"
    }
  ],
  "etymology_text": "From Middle French raréfaction.",
  "forms": [
    {
      "form": "rarefactions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "rarefaction (countable and uncountable, plural rarefactions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English undefined derivations",
          "parents": [
            "Undefined derivations",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Mandarin terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A reduction in the density of a material, especially that of a fluid."
      ],
      "id": "en-rarefaction-en-noun-uiuDWHIL",
      "links": [
        [
          "reduction",
          "reduction"
        ],
        [
          "density",
          "density"
        ],
        [
          "fluid",
          "fluid"
        ]
      ],
      "related": [
        {
          "word": "rarefact"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "translations": [
        {
          "code": "bn",
          "lang": "Bengali",
          "roman": "tonukron",
          "sense": "reduction in the density of a material",
          "word": "তনুকরণ"
        },
        {
          "code": "bn",
          "lang": "Bengali",
          "roman": "tonubhobon",
          "sense": "reduction in the density of a material",
          "word": "তনুভবন"
        },
        {
          "code": "bg",
          "lang": "Bulgarian",
          "roman": "razreždane",
          "sense": "reduction in the density of a material",
          "tags": [
            "neuter"
          ],
          "word": "разреждане"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "xīshū",
          "sense": "reduction in the density of a material",
          "word": "稀疏"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "note": "in medicine",
          "sense": "reduction in the density of a material",
          "word": "疏鬆"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "shūsōng",
          "sense": "reduction in the density of a material",
          "word": "疏松"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "reduction in the density of a material",
          "word": "harventaminen"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "reduction in the density of a material",
          "word": "ohentaminen"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "reduction in the density of a material",
          "word": "harventuminen"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "reduction in the density of a material",
          "word": "ohentuminen"
        },
        {
          "code": "mk",
          "lang": "Macedonian",
          "roman": "proretčuvanje",
          "sense": "reduction in the density of a material",
          "tags": [
            "neuter"
          ],
          "word": "проретчување"
        },
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "reduction in the density of a material",
          "tags": [
            "feminine"
          ],
          "word": "rarefação"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "razrežénije",
          "sense": "reduction in the density of a material",
          "word": "разреже́ние"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "reduction in the density of a material",
          "tags": [
            "feminine"
          ],
          "word": "rarefacción"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "reduction in the density of a material",
          "word": "seyrelme"
        },
        {
          "code": "tr",
          "lang": "Turkish",
          "sense": "reduction in the density of a material",
          "word": "seyrekleşme"
        }
      ],
      "wikipedia": [
        "rarefaction"
      ]
    }
  ],
  "word": "rarefaction"
}

{
  "antonyms": [
    {
      "word": "compression"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "frm",
        "3": "raréfaction"
      },
      "expansion": "Middle French raréfaction",
      "name": "uder"
    }
  ],
  "etymology_text": "From Middle French raréfaction.",
  "forms": [
    {
      "form": "rarefactions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "rarefaction (countable and uncountable, plural rarefactions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "rarefact"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms derived from Middle French",
        "English uncountable nouns",
        "English undefined derivations",
        "Mandarin terms with redundant transliterations"
      ],
      "glosses": [
        "A reduction in the density of a material, especially that of a fluid."
      ],
      "links": [
        [
          "reduction",
          "reduction"
        ],
        [
          "density",
          "density"
        ],
        [
          "fluid",
          "fluid"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "rarefaction"
      ]
    }
  ],
  "translations": [
    {
      "code": "bn",
      "lang": "Bengali",
      "roman": "tonukron",
      "sense": "reduction in the density of a material",
      "word": "তনুকরণ"
    },
    {
      "code": "bn",
      "lang": "Bengali",
      "roman": "tonubhobon",
      "sense": "reduction in the density of a material",
      "word": "তনুভবন"
    },
    {
      "code": "bg",
      "lang": "Bulgarian",
      "roman": "razreždane",
      "sense": "reduction in the density of a material",
      "tags": [
        "neuter"
      ],
      "word": "разреждане"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "xīshū",
      "sense": "reduction in the density of a material",
      "word": "稀疏"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "note": "in medicine",
      "sense": "reduction in the density of a material",
      "word": "疏鬆"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "shūsōng",
      "sense": "reduction in the density of a material",
      "word": "疏松"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "reduction in the density of a material",
      "word": "harventaminen"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "reduction in the density of a material",
      "word": "ohentaminen"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "reduction in the density of a material",
      "word": "harventuminen"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "reduction in the density of a material",
      "word": "ohentuminen"
    },
    {
      "code": "mk",
      "lang": "Macedonian",
      "roman": "proretčuvanje",
      "sense": "reduction in the density of a material",
      "tags": [
        "neuter"
      ],
      "word": "проретчување"
    },
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "reduction in the density of a material",
      "tags": [
        "feminine"
      ],
      "word": "rarefação"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "razrežénije",
      "sense": "reduction in the density of a material",
      "word": "разреже́ние"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "reduction in the density of a material",
      "tags": [
        "feminine"
      ],
      "word": "rarefacción"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "reduction in the density of a material",
      "word": "seyrelme"
    },
    {
      "code": "tr",
      "lang": "Turkish",
      "sense": "reduction in the density of a material",
      "word": "seyrekleşme"
    }
  ],
  "word": "rarefaction"
}