"lazy evaluation" meaning in English

{
  "antonyms": [
    {
      "word": "eager evaluation"
    },
    {
      "word": "strict evaluation"
    }
  ],
  "forms": [
    {
      "form": "lazy evaluations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lazy evaluation (plural lazy evaluations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Computing",
          "orig": "en:Computing",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "[2014, Alejandro Serrano Mena, Beginning Haskell: A Project-Based Approach, Apress, →ISBN, page 5:",
          "text": "By default, Haskell uses an execution strategy called lazy evaluation. Under laziness, an expression is never evaluated until it is needed for the evaluation of a larger one.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Any of a variety of computing techniques that delay the computation of expressions until (and unless) the results are needed."
      ],
      "id": "en-lazy_evaluation-en-noun-~5mf6WOJ",
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "computing",
          "computing"
        ],
        [
          "technique",
          "technique"
        ],
        [
          "delay",
          "delay"
        ],
        [
          "computation",
          "computation"
        ],
        [
          "expression",
          "expression"
        ],
        [
          "result",
          "result"
        ]
      ],
      "raw_glosses": [
        "(computing) Any of a variety of computing techniques that delay the computation of expressions until (and unless) the results are needed."
      ],
      "related": [
        {
          "word": "lazy initialisation"
        }
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "wikipedia": [
        "lazy evaluation"
      ]
    }
  ],
  "word": "lazy evaluation"
}

{
  "antonyms": [
    {
      "word": "eager evaluation"
    },
    {
      "word": "strict evaluation"
    }
  ],
  "forms": [
    {
      "form": "lazy evaluations",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "lazy evaluation (plural lazy evaluations)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "lazy initialisation"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Computing"
      ],
      "examples": [
        {
          "ref": "[2014, Alejandro Serrano Mena, Beginning Haskell: A Project-Based Approach, Apress, →ISBN, page 5:",
          "text": "By default, Haskell uses an execution strategy called lazy evaluation. Under laziness, an expression is never evaluated until it is needed for the evaluation of a larger one.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Any of a variety of computing techniques that delay the computation of expressions until (and unless) the results are needed."
      ],
      "links": [
        [
          "computing",
          "computing#Noun"
        ],
        [
          "computing",
          "computing"
        ],
        [
          "technique",
          "technique"
        ],
        [
          "delay",
          "delay"
        ],
        [
          "computation",
          "computation"
        ],
        [
          "expression",
          "expression"
        ],
        [
          "result",
          "result"
        ]
      ],
      "raw_glosses": [
        "(computing) Any of a variety of computing techniques that delay the computation of expressions until (and unless) the results are needed."
      ],
      "topics": [
        "computing",
        "engineering",
        "mathematics",
        "natural-sciences",
        "physical-sciences",
        "sciences"
      ],
      "wikipedia": [
        "lazy evaluation"
      ]
    }
  ],
  "word": "lazy evaluation"
}