"supplementer" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "supplement",
        "3": "er"
      },
      "expansion": "supplement + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "From supplement + -er.",
  "forms": [
    {
      "form": "supplementers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "supplementer (plural supplementers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "75 25",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "66 34",
          "kind": "other",
          "name": "English terms suffixed with -er",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "87 13",
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          "name": "Pages with 2 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "88 12",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "One who supplements something."
      ],
      "id": "en-supplementer-en-noun-5ziwkqal",
      "links": [
        [
          "supplement",
          "supplement"
        ]
      ]
    },
    {
      "glosses": [
        "A person who takes nutritional supplements."
      ],
      "id": "en-supplementer-en-noun-NBMbtt42",
      "links": [
        [
          "nutritional",
          "nutritional"
        ]
      ]
    }
  ],
  "word": "supplementer"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms suffixed with -er",
    "Pages with 2 entries",
    "Pages with entries"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "supplement",
        "3": "er"
      },
      "expansion": "supplement + -er",
      "name": "suffix"
    }
  ],
  "etymology_text": "From supplement + -er.",
  "forms": [
    {
      "form": "supplementers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "supplementer (plural supplementers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "One who supplements something."
      ],
      "links": [
        [
          "supplement",
          "supplement"
        ]
      ]
    },
    {
      "glosses": [
        "A person who takes nutritional supplements."
      ],
      "links": [
        [
          "nutritional",
          "nutritional"
        ]
      ]
    }
  ],
  "word": "supplementer"
}