"orthotonos" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ὀρθός",
        "t": "straight"
      },
      "expansion": "Ancient Greek ὀρθός (orthós, “straight”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek ὀρθός (orthós, “straight”) + τόνος (tónos, “tension”). See further at opisthotonos.",
  "head_templates": [
    {
      "args": {
        "1": "-"
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      "expansion": "orthotonos (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
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          "source": "w"
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      ],
      "glosses": [
        "muscular rigidity associated with tetanus"
      ],
      "id": "en-orthotonos-en-noun-bzCYncDg",
      "links": [
        [
          "muscular",
          "muscular"
        ],
        [
          "rigidity",
          "rigidity"
        ],
        [
          "tetanus",
          "tetanus"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "orthotonos"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "grc",
        "3": "ὀρθός",
        "t": "straight"
      },
      "expansion": "Ancient Greek ὀρθός (orthós, “straight”)",
      "name": "der"
    }
  ],
  "etymology_text": "From Ancient Greek ὀρθός (orthós, “straight”) + τόνος (tónos, “tension”). See further at opisthotonos.",
  "head_templates": [
    {
      "args": {
        "1": "-"
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      "expansion": "orthotonos (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English nouns",
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      "glosses": [
        "muscular rigidity associated with tetanus"
      ],
      "links": [
        [
          "muscular",
          "muscular"
        ],
        [
          "rigidity",
          "rigidity"
        ],
        [
          "tetanus",
          "tetanus"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "orthotonos"
}