"цикло-" meaning in Russe

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en russe issus d’un mot en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Préfixes en russe",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Russe",
      "orig": "russe",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "word": "циклобутан"
    },
    {
      "word": "циклогексанол"
    },
    {
      "word": "циклогексиламин"
    },
    {
      "word": "циклопропан"
    }
  ],
  "etymology_texts": [
    "Du grec ancien κύκλος, kýklos (« cercle »)."
  ],
  "lang": "Russe",
  "lang_code": "ru",
  "pos": "prefix",
  "pos_title": "Préfixe",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en russe de la chimie organique",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Cyclo-."
      ],
      "id": "fr-цикло--ru-prefix-BYmrqB2X",
      "raw_tags": [
        "Chimie organique"
      ]
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "цикло-"
}

{
  "categories": [
    "Mots en russe issus d’un mot en grec ancien",
    "Préfixes en russe",
    "russe"
  ],
  "derived": [
    {
      "word": "циклобутан"
    },
    {
      "word": "циклогексанол"
    },
    {
      "word": "циклогексиламин"
    },
    {
      "word": "циклопропан"
    }
  ],
  "etymology_texts": [
    "Du grec ancien κύκλος, kýklos (« cercle »)."
  ],
  "lang": "Russe",
  "lang_code": "ru",
  "pos": "prefix",
  "pos_title": "Préfixe",
  "senses": [
    {
      "categories": [
        "Lexique en russe de la chimie organique"
      ],
      "glosses": [
        "Cyclo-."
      ],
      "raw_tags": [
        "Chimie organique"
      ]
    }
  ],
  "tags": [
    "morpheme"
  ],
  "word": "цикло-"
}