"mero" meaning in Esperanto

{
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "grc",
        "3": "μέρος",
        "t": "part"
      },
      "expansion": "Ancient Greek μέρος (méros, “part”)",
      "name": "der"
    }
  ],
  "etymology_text": "Derived from Ancient Greek μέρος (méros, “part”).",
  "forms": [
    {
      "form": "meron",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "meroj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "merojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mero (accusative singular meron, plural meroj, accusative plural merojn)",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "me‧ro"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Esperanto entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 13 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "eo",
          "name": "Chemistry",
          "orig": "eo:Chemistry",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "11 2 8 11 10 0 0 10 9 1 0 10 7 7 9 1 3 0",
          "kind": "other",
          "name": "Pages with 13 entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "derived": [
        {
          "word": "dimero"
        },
        {
          "word": "elastomero"
        },
        {
          "word": "elastopolimero"
        },
        {
          "word": "heteropolimero"
        },
        {
          "word": "homopolimero"
        },
        {
          "word": "malpolimerigi"
        },
        {
          "word": "monomero"
        },
        {
          "word": "oligomero"
        },
        {
          "word": "polimerazo"
        },
        {
          "word": "polimereco"
        },
        {
          "word": "polimerigi"
        },
        {
          "word": "polimero"
        },
        {
          "word": "tetramero"
        },
        {
          "word": "trimero"
        }
      ],
      "glosses": [
        "-mer"
      ],
      "id": "en-mero-eo-noun-W5woHOay",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "-mer",
          "-mer#English"
        ]
      ],
      "raw_glosses": [
        "(chemistry) -mer"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈmero]"
    },
    {
      "rhymes": "-ero"
    }
  ],
  "word": "mero"
}

{
  "categories": [
    "Pages with 13 entries",
    "es:Fish"
  ],
  "derived": [
    {
      "word": "dimero"
    },
    {
      "word": "elastomero"
    },
    {
      "word": "elastopolimero"
    },
    {
      "word": "heteropolimero"
    },
    {
      "word": "homopolimero"
    },
    {
      "word": "malpolimerigi"
    },
    {
      "word": "monomero"
    },
    {
      "word": "oligomero"
    },
    {
      "word": "polimerazo"
    },
    {
      "word": "polimereco"
    },
    {
      "word": "polimerigi"
    },
    {
      "word": "polimero"
    },
    {
      "word": "tetramero"
    },
    {
      "word": "trimero"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "eo",
        "2": "grc",
        "3": "μέρος",
        "t": "part"
      },
      "expansion": "Ancient Greek μέρος (méros, “part”)",
      "name": "der"
    }
  ],
  "etymology_text": "Derived from Ancient Greek μέρος (méros, “part”).",
  "forms": [
    {
      "form": "meron",
      "tags": [
        "accusative",
        "singular"
      ]
    },
    {
      "form": "meroj",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "merojn",
      "tags": [
        "accusative",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mero (accusative singular meron, plural meroj, accusative plural merojn)",
      "name": "eo-head"
    }
  ],
  "hyphenation": [
    "me‧ro"
  ],
  "lang": "Esperanto",
  "lang_code": "eo",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Esperanto entries with incorrect language header",
        "Esperanto lemmas",
        "Esperanto nouns",
        "Esperanto terms derived from Ancient Greek",
        "Esperanto terms with IPA pronunciation",
        "Pages with 13 entries",
        "Rhymes:Esperanto/ero",
        "eo:Chemistry"
      ],
      "glosses": [
        "-mer"
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "-mer",
          "-mer#English"
        ]
      ],
      "raw_glosses": [
        "(chemistry) -mer"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈmero]"
    },
    {
      "rhymes": "-ero"
    }
  ],
  "word": "mero"
}