"sous-normale" meaning in Français

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  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Nom commun",
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      "examples": [
        {
          "text": "La sous-normale en tout point d’une parabole est constante et égale au paramètre."
        }
      ],
      "glosses": [
        "Partie de l’axe d’une courbe qui est comprise entre l’ordonnée d'un point de la courbe et l'intersection avec la normale à la courbe en ce point."
      ],
      "id": "fr-sous-normale-fr-noun-mh8O-5Qx",
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        "geometry"
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  "tags": [
    "feminine"
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  "translations": [
    {
      "lang": "Breton",
      "lang_code": "br",
      "tags": [
        "feminine"
      ],
      "word": "gouskoueriegenn"
    },
    {
      "lang": "Croate",
      "lang_code": "hr",
      "word": "normala plohe"
    },
    {
      "lang": "Roumain",
      "lang_code": "ro",
      "tags": [
        "feminine"
      ],
      "word": "subnormală"
    }
  ],
  "word": "sous-normale"
}

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  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
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        {
          "text": "La sous-normale en tout point d’une parabole est constante et égale au paramètre."
        }
      ],
      "glosses": [
        "Partie de l’axe d’une courbe qui est comprise entre l’ordonnée d'un point de la courbe et l'intersection avec la normale à la courbe en ce point."
      ],
      "topics": [
        "geometry"
      ]
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  "tags": [
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  "translations": [
    {
      "lang": "Breton",
      "lang_code": "br",
      "tags": [
        "feminine"
      ],
      "word": "gouskoueriegenn"
    },
    {
      "lang": "Croate",
      "lang_code": "hr",
      "word": "normala plohe"
    },
    {
      "lang": "Roumain",
      "lang_code": "ro",
      "tags": [
        "feminine"
      ],
      "word": "subnormală"
    }
  ],
  "word": "sous-normale"
}