"isotonia" meaning in Italian

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "iso",
        "3": ""
      },
      "expansion": "iso- +",
      "name": "prefix"
    }
  ],
  "etymology_text": "From iso- +.",
  "forms": [
    {
      "form": "isotonie",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "isotonia f (plural isotonie)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Italian entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Italian terms prefixed with iso-",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "isotonicity"
      ],
      "id": "en-isotonia-it-noun-ABciomJy",
      "links": [
        [
          "isotonicity",
          "isotonicity"
        ]
      ],
      "related": [
        {
          "word": "isotonico"
        }
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "isotonia"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "it",
        "2": "iso",
        "3": ""
      },
      "expansion": "iso- +",
      "name": "prefix"
    }
  ],
  "etymology_text": "From iso- +.",
  "forms": [
    {
      "form": "isotonie",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "f"
      },
      "expansion": "isotonia f (plural isotonie)",
      "name": "it-noun"
    }
  ],
  "lang": "Italian",
  "lang_code": "it",
  "pos": "noun",
  "related": [
    {
      "word": "isotonico"
    }
  ],
  "senses": [
    {
      "categories": [
        "Italian countable nouns",
        "Italian entries with incorrect language header",
        "Italian feminine nouns",
        "Italian lemmas",
        "Italian nouns",
        "Italian terms prefixed with iso-",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "isotonicity"
      ],
      "links": [
        [
          "isotonicity",
          "isotonicity"
        ]
      ],
      "tags": [
        "feminine"
      ]
    }
  ],
  "word": "isotonia"
}