"harmonic progression" meaning in English

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      "form": "harmonic progressions",
      "tags": [
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      "expansion": "harmonic progression (plural harmonic progressions)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Mathematics",
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            "Formal sciences",
            "Sciences",
            "All topics",
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      ],
      "glosses": [
        "A sequence of numbers whose reciprocals form an arithmetic progression."
      ],
      "id": "en-harmonic_progression-en-noun-h7M~ZWDc",
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "sequence",
          "sequence"
        ],
        [
          "number",
          "number"
        ],
        [
          "reciprocal",
          "reciprocal"
        ],
        [
          "arithmetic progression",
          "arithmetic progression"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A sequence of numbers whose reciprocals form an arithmetic progression."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "harmonic progression"
}

{
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    {
      "form": "harmonic progressions",
      "tags": [
        "plural"
      ]
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      "expansion": "harmonic progression (plural harmonic progressions)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A sequence of numbers whose reciprocals form an arithmetic progression."
      ],
      "links": [
        [
          "mathematics",
          "mathematics"
        ],
        [
          "sequence",
          "sequence"
        ],
        [
          "number",
          "number"
        ],
        [
          "reciprocal",
          "reciprocal"
        ],
        [
          "arithmetic progression",
          "arithmetic progression"
        ]
      ],
      "raw_glosses": [
        "(mathematics) A sequence of numbers whose reciprocals form an arithmetic progression."
      ],
      "topics": [
        "mathematics",
        "sciences"
      ]
    }
  ],
  "word": "harmonic progression"
}