nullable

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English

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Etymology

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From null +‎ -able.

Adjective

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nullable (not comparable)

  1. That may be nullified; nullifiable.
    • 1841, F. Barham, The political works of Marcus Tullius Cicero:
      Then you regard as nullable and voidable the laws of Titius and Apuleius, because they are unjust.
  2. (computing, of a variable or object) That is allowed to have a null value.
    • 2006, Anthony Molinaro, SQL Cookbook:
      You want to perform an aggregation on a column, but the column is nullable.

Derived terms

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Noun

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nullable (plural nullables)

  1. (computing) A variable, etc. that is allowed to have a null value.