"sigma lunaire" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms des lettres grecques en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "glosses": [
        "Forme de la lettre grecque le sigma issu du grec oriental, qui a influé sur la lettre esse en cyrillique moderne. Capitale : Ϲ ; minuscule : ϲ."
      ],
      "id": "fr-sigma_lunaire-fr-noun-iZj9cdeh"
    }
  ],
  "tags": [
    "masculine"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "lunate sigma"
    }
  ],
  "word": "sigma lunaire"
}

{
  "categories": [
    "Locutions nominales en français",
    "Noms des lettres grecques en français",
    "Traductions en anglais",
    "français"
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "senses": [
    {
      "glosses": [
        "Forme de la lettre grecque le sigma issu du grec oriental, qui a influé sur la lettre esse en cyrillique moderne. Capitale : Ϲ ; minuscule : ϲ."
      ]
    }
  ],
  "tags": [
    "masculine"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "lunate sigma"
    }
  ],
  "word": "sigma lunaire"
}