Null may refer to:


In computing

  • Null (SQL), a special marker and keyword in SQL
  • Null character, the zero-valued ASCII character, also designated by NUL, often used as a terminator, separator or filler
  • Null device, a special computer file that discards all data written to it
  • Null modem, a specially wired serial communications cable
  • Null object pattern, a software design pattern using an object with defined neutral behavior
  • Null pointer (sometimes written NULL), used in computer programming for an uninitialized, undefined, empty, or meaningless value
  • Null string, the unique string of length zero (in computer science and formal language theory)
  • Null-terminated string, a character string of which the length is determined by the first null-character (in programming language C and related languages)
  • Nullable type, a feature of some statically-typed programming languages which allows a data type to be set to the special value NULL

In art

  • KK Null, a Japanese musician
  • Null, an identity of the character Gray Fox in the Metal Gear Solid: Portable Ops video game
  • Null, man-eating sentients in the Downs-Lord Triptich books by John Whitbourn
  • Null, the Living Darkness, a Marvel Comics character
  • Nulls, worm-like remains of defeated characters in the animated program ReBoot

In mathematics

In science


  • Christopher Null, American film critic
  • Eduard van der Nüll, Austrian architect
  • Gary Null, American radio host and author on alternative medicine
  • Keith Null, American football player
  • KK Null, Japanese experimental multi-instrumentalist musician


  • Null and void, having no legal validity
  • The Null Corporation, the current imprint for Nine Inch Nails
  • Null-A, a term used in science fiction, referring to Korzybski's notation \overline{A} as an abbreviation for "non-Aristotelian"

See also

  • Nil (disambiguation)
  • Nul (disambiguation)

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Look at other dictionaries:

  • Null — (de) …   Kölsch Dialekt Lexikon

  • null —  null …   Hochdeutsch - Plautdietsch Wörterbuch

  • Null —  Pour le musicien japonais, voir Kazuyuki K. Null. NULL est un mot clef présent dans de nombreux langages informatiques, et qui désigne l état d un pointeur qui n a pas de cible ou d une variable qui n a pas de valeur. La notion de valeur ou …   Wikipédia en Français

  • Null — «Null» redirige aquí. Para otras acepciones, véase Null (desambiguación). El término null o nulo es a menudo utilizado en la computación, haciendo referencia a la nada. En programación, null resulta ser un valor especial aplicado a un puntero (o… …   Wikipedia Español

  • null — [nʌl] adjective [only before a noun] 1. STATISTICS a null effect, result etc is one that is zero or nothing 2. LAW another name for null and void: • Their suit also asks the court to declare null the buyer s shareholder rights plan. * * * …   Financial and business terms

  • NULL (Си и Си++) — NULL в языках программирования Си и C++  макрос, объявленный в заголовочном файле stddef.h (и других заголовочных файлах). Значением этого макроса является зависящая от реализации константа нулевого указателя (англ. null pointer constant).… …   Википедия

  • null — / nəl/ adj [Anglo French nul, literally, not any, from Latin nullus, from ne not + ullus any]: having no legal or binding force: void a null contract Merriam Webster’s Dictionary of Law. Merriam Webster. 1996 …   Law dictionary

  • Null — Null, a. [L. nullus not any, none; ne not + ullus any, a dim. of unus one; cf. F. nul. See {No}, and {One}, and cf. {None}.] 1. Of no legal or binding force or validity; of no efficacy; invalid; void; nugatory; useless. [1913 Webster] Faultily… …   The Collaborative International Dictionary of English

  • Null-O — is a 1958 science fiction short story by Philip K. Dick. This rather brief story examines the concept of totally unempathic and logical humans ( Null O s) in an obvious parody of the plot and concepts of The Players of Null A by A. E. van Vogt.… …   Wikipedia

  • Null — Sf std. (16. Jh.) Entlehnung. Entlehnt aus l. nulla gleicher Bedeutung, feminine Substantivierung von l. nullus keiner . Dieses ist eine Lehnbedeutung von arab. ṣifr, das ebenfalls Null und leer bedeutet und das seinerseits ai. śūnya Null, leer… …   Etymologisches Wörterbuch der deutschen sprache

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