"Low Mass" meaning in English

{
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        "plural"
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        "head": "Low Mass"
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      "expansion": "Low Mass (plural Low Masses)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Anglicanism",
          "orig": "en:Anglicanism",
          "parents": [
            "Protestantism",
            "Christianity",
            "Abrahamism",
            "Religion",
            "Culture",
            "Society",
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            "Fundamental"
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Roman Catholicism",
          "orig": "en:Roman Catholicism",
          "parents": [
            "Catholicism",
            "Christianity",
            "Abrahamism",
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            "Culture",
            "Society",
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            "Fundamental"
          ],
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        }
      ],
      "coordinate_terms": [
        {
          "word": "High Mass"
        }
      ],
      "glosses": [
        "An ordinary Roman Catholic or Anglo-Catholic Mass celebrated without music and incense."
      ],
      "id": "en-Low_Mass-en-noun-iq6IT0D5",
      "links": [
        [
          "Roman Catholic",
          "Roman Catholic Church"
        ],
        [
          "Anglo-Catholic",
          "Anglo-Catholic"
        ],
        [
          "Mass",
          "Mass"
        ],
        [
          "music",
          "music"
        ],
        [
          "incense",
          "incense"
        ]
      ],
      "related": [
        {
          "word": "low mass star"
        }
      ],
      "translations": [
        {
          "code": "fr",
          "lang": "French",
          "sense": "Mass celebrated without music",
          "tags": [
            "feminine"
          ],
          "word": "messe basse"
        },
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "Mass celebrated without music",
          "word": "kismise"
        },
        {
          "code": "la",
          "lang": "Latin",
          "sense": "Mass celebrated without music",
          "tags": [
            "feminine"
          ],
          "word": "missa prīvāta"
        }
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-æs"
    }
  ],
  "word": "Low Mass"
}

{
  "coordinate_terms": [
    {
      "word": "High Mass"
    }
  ],
  "forms": [
    {
      "form": "Low Masses",
      "tags": [
        "plural"
      ]
    }
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      "expansion": "Low Mass (plural Low Masses)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "low mass star"
    }
  ],
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      "glosses": [
        "An ordinary Roman Catholic or Anglo-Catholic Mass celebrated without music and incense."
      ],
      "links": [
        [
          "Roman Catholic",
          "Roman Catholic Church"
        ],
        [
          "Anglo-Catholic",
          "Anglo-Catholic"
        ],
        [
          "Mass",
          "Mass"
        ],
        [
          "music",
          "music"
        ],
        [
          "incense",
          "incense"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-æs"
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "Mass celebrated without music",
      "tags": [
        "feminine"
      ],
      "word": "messe basse"
    },
    {
      "code": "hu",
      "lang": "Hungarian",
      "sense": "Mass celebrated without music",
      "word": "kismise"
    },
    {
      "code": "la",
      "lang": "Latin",
      "sense": "Mass celebrated without music",
      "tags": [
        "feminine"
      ],
      "word": "missa prīvāta"
    }
  ],
  "word": "Low Mass"
}