"нейро-" meaning in Russian

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "grc",
        "3": "νεῦρον",
        "4": "",
        "5": "nerve"
      },
      "expansion": "Ancient Greek νεῦρον (neûron, “nerve”)",
      "name": "uder"
    },
    {
      "args": {
        "1": "ru",
        "2": "невро-"
      },
      "expansion": "Doublet of невро- (nevro-)",
      "name": "doublet"
    }
  ],
  "etymology_text": "Ultimately from Ancient Greek νεῦρον (neûron, “nerve”). Doublet of невро- (nevro-).",
  "forms": [
    {
      "form": "nejro-",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "prefix"
      },
      "expansion": "нейро- • (nejro-)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages using catfix",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Russian undefined derivations",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "neuro-"
      ],
      "id": "en-нейро--ru-prefix-JF-CULYo",
      "links": [
        [
          "neuro-",
          "neuro-"
        ]
      ],
      "synonyms": [
        {
          "word": "нервно-"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[nʲɪjrə]"
    },
    {
      "ipa": "[ˌnʲejrə]"
    },
    {
      "ipa": "[nɨjrə]"
    },
    {
      "ipa": "[ˈnɛjrə]"
    }
  ],
  "word": "нейро-"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ru",
        "2": "grc",
        "3": "νεῦρον",
        "4": "",
        "5": "nerve"
      },
      "expansion": "Ancient Greek νεῦρον (neûron, “nerve”)",
      "name": "uder"
    },
    {
      "args": {
        "1": "ru",
        "2": "невро-"
      },
      "expansion": "Doublet of невро- (nevro-)",
      "name": "doublet"
    }
  ],
  "etymology_text": "Ultimately from Ancient Greek νεῦρον (neûron, “nerve”). Doublet of невро- (nevro-).",
  "forms": [
    {
      "form": "nejro-",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "prefix"
      },
      "expansion": "нейро- • (nejro-)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Pages using catfix",
        "Pages with 2 entries",
        "Pages with entries",
        "Russian 2-syllable words",
        "Russian doublets",
        "Russian entries with incorrect language header",
        "Russian lemmas",
        "Russian prefixes",
        "Russian terms derived from Ancient Greek",
        "Russian terms with IPA pronunciation",
        "Russian undefined derivations"
      ],
      "glosses": [
        "neuro-"
      ],
      "links": [
        [
          "neuro-",
          "neuro-"
        ]
      ],
      "synonyms": [
        {
          "word": "нервно-"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[nʲɪjrə]"
    },
    {
      "ipa": "[ˌnʲejrə]"
    },
    {
      "ipa": "[nɨjrə]"
    },
    {
      "ipa": "[ˈnɛjrə]"
    }
  ],
  "word": "нейро-"
}