"eau légère" meaning in Français

{
  "anagrams": [
    {
      "word": "réélaguée"
    }
  ],
  "antonyms": [
    {
      "word": "eau lourde"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en croate",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en japonais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "(XXᵉ siècle) → voir eau et léger."
  ],
  "forms": [
    {
      "form": "eaux légères",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en français",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en français de la chimie",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Lexique en français du nucléaire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              11,
              21
            ]
          ],
          "text": "Réacteur à eau légère pressurisée."
        }
      ],
      "glosses": [
        "Eau ordinaire, par opposition à l’eau lourde. Eau délestée de tous les isotopes lourds (deutérium) de l’hydrogène qu’elle contenait à l’état naturel."
      ],
      "id": "fr-eau_légère-fr-noun-LqMfyzgv",
      "raw_tags": [
        "Nucléaire"
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\o le.ʒɛʁ\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "light water"
    },
    {
      "lang": "Croate",
      "lang_code": "hr",
      "word": "meka voda"
    },
    {
      "lang": "Japonais",
      "lang_code": "ja",
      "roman": "keisui",
      "word": "軽水"
    }
  ],
  "word": "eau légère"
}

{
  "anagrams": [
    {
      "word": "réélaguée"
    }
  ],
  "antonyms": [
    {
      "word": "eau lourde"
    }
  ],
  "categories": [
    "Locutions nominales en français",
    "Traductions en anglais",
    "Traductions en croate",
    "Traductions en japonais",
    "français"
  ],
  "etymology_texts": [
    "(XXᵉ siècle) → voir eau et léger."
  ],
  "forms": [
    {
      "form": "eaux légères",
      "tags": [
        "plural"
      ]
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "categories": [
        "Exemples en français",
        "Lexique en français de la chimie",
        "Lexique en français du nucléaire"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              11,
              21
            ]
          ],
          "text": "Réacteur à eau légère pressurisée."
        }
      ],
      "glosses": [
        "Eau ordinaire, par opposition à l’eau lourde. Eau délestée de tous les isotopes lourds (deutérium) de l’hydrogène qu’elle contenait à l’état naturel."
      ],
      "raw_tags": [
        "Nucléaire"
      ],
      "topics": [
        "chemistry"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\o le.ʒɛʁ\\"
    }
  ],
  "tags": [
    "feminine"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "light water"
    },
    {
      "lang": "Croate",
      "lang_code": "hr",
      "word": "meka voda"
    },
    {
      "lang": "Japonais",
      "lang_code": "ja",
      "roman": "keisui",
      "word": "軽水"
    }
  ],
  "word": "eau légère"
}