"complexation" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "complex",
        "3": "ation"
      },
      "expansion": "complex + -ation",
      "name": "suffix"
    }
  ],
  "etymology_text": "From complex + -ation.",
  "forms": [
    {
      "form": "complexations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "complexation (plural complexations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -ation",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Chemical reactions",
          "orig": "en:Chemical reactions",
          "parents": [],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "decomplexation"
        },
        {
          "word": "heterocomplexation"
        },
        {
          "word": "immunocomplexation"
        },
        {
          "word": "precomplexation"
        },
        {
          "word": "radiocomplexation"
        }
      ],
      "glosses": [
        "The formation of a complex"
      ],
      "id": "en-complexation-en-noun--7RBKrD0",
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "complex",
          "complex"
        ]
      ],
      "raw_glosses": [
        "(chemistry) The formation of a complex"
      ],
      "synonyms": [
        {
          "word": "complexing"
        }
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "word": "complexation"
}

{
  "derived": [
    {
      "word": "decomplexation"
    },
    {
      "word": "heterocomplexation"
    },
    {
      "word": "immunocomplexation"
    },
    {
      "word": "precomplexation"
    },
    {
      "word": "radiocomplexation"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "complex",
        "3": "ation"
      },
      "expansion": "complex + -ation",
      "name": "suffix"
    }
  ],
  "etymology_text": "From complex + -ation.",
  "forms": [
    {
      "form": "complexations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "complexation (plural complexations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        "English countable nouns",
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        "English lemmas",
        "English nouns",
        "English terms suffixed with -ation",
        "Pages with 1 entry",
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        "en:Chemical reactions"
      ],
      "glosses": [
        "The formation of a complex"
      ],
      "links": [
        [
          "chemistry",
          "chemistry"
        ],
        [
          "complex",
          "complex"
        ]
      ],
      "raw_glosses": [
        "(chemistry) The formation of a complex"
      ],
      "topics": [
        "chemistry",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "complexing"
    }
  ],
  "word": "complexation"
}