"sink function" meaning in English

{
  "forms": [
    {
      "form": "sink functions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sink function (plural sink functions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computer security",
          "orig": "en:Computer security",
          "parents": [
            "Computing",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A function that may contain tainted values."
      ],
      "id": "en-sink_function-en-noun-Gg9RBQ0U",
      "links": [
        [
          "computer security",
          "computer security"
        ],
        [
          "function",
          "function"
        ],
        [
          "tainted",
          "tainted"
        ]
      ],
      "qualifier": "computer security",
      "raw_glosses": [
        "(computer security) A function that may contain tainted values."
      ]
    },
    {
      "categories": [
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Ecology",
          "orig": "en:Ecology",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "_dis": "12 88",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An environment’s ability to absorb and render pollution harmless."
      ],
      "id": "en-sink_function-en-noun-33TiDv~5",
      "links": [
        [
          "ecology",
          "ecology"
        ]
      ],
      "raw_glosses": [
        "(ecology) An environment’s ability to absorb and render pollution harmless."
      ],
      "topics": [
        "biology",
        "ecology",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ʌŋkʃən"
    }
  ],
  "word": "sink function"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "Rhymes:English/ʌŋkʃən",
    "Rhymes:English/ʌŋkʃən/3 syllables"
  ],
  "forms": [
    {
      "form": "sink functions",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sink function (plural sink functions)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "en:Computer security"
      ],
      "glosses": [
        "A function that may contain tainted values."
      ],
      "links": [
        [
          "computer security",
          "computer security"
        ],
        [
          "function",
          "function"
        ],
        [
          "tainted",
          "tainted"
        ]
      ],
      "qualifier": "computer security",
      "raw_glosses": [
        "(computer security) A function that may contain tainted values."
      ]
    },
    {
      "categories": [
        "en:Ecology"
      ],
      "glosses": [
        "An environment’s ability to absorb and render pollution harmless."
      ],
      "links": [
        [
          "ecology",
          "ecology"
        ]
      ],
      "raw_glosses": [
        "(ecology) An environment’s ability to absorb and render pollution harmless."
      ],
      "topics": [
        "biology",
        "ecology",
        "natural-sciences"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ʌŋkʃən"
    }
  ],
  "word": "sink function"
}