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Null is an English word meaning 'nothing' or without value or consequence. It is derived from the Latin word nullus meaning 'none'. Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ...

Null may refer to:

• /dev/null, the null device in Unix-like operating systems, equivalent to the NUL device on CP/M, DOS, and Windows operating systems
• Null, in law, having no legal validity
• Null (computer), a special value in computer programming
• Null (mathematics), a zero value in several branches of mathematics
• Null (physics), a concept in electromagnetism and theoretical physics
• Null (SQL), a special marker and keyword in SQL
• Null allele (genetics), also see amorph
• Null character, an ASCII value of 00 commonly used as a terminator, separator or filler
• Null cipher, a ciphertext symbol
• Null hypothesis, a hypothesis in statistics
• Null morpheme (linguistics)
• Null result, the absence of the expected result in a scientific experiment
• Null pointe, [fr] no points, "love" in tennis scoring
• KK Null, a Japanese musician
• German for zero:

In Unix-like operating systems, /dev/null or the null device is a special file that discards all data written to it, and provides no data to any process that reads from it. ... This article does not cite any references or sources. ... Lady Justice or Justitia is a personification of the moral force that underlies the legal system (particularly in Western art). ... In computer programming, null is a special value for a pointer (or other kind of reference) used to signify that the pointer intentionally does not have a target. ... In mathematics, the word null (from German null and Norwegian null, which is from Latin nullus, both meaning zero, or none)[1] may or may not have a meaning different from zero. ... Electromagnetism In radio electronics, a null is an area or vector at which the signal from two or more of the antenna elements in an antenna system cancels out almost entirely. ... The Greek lowercase omega (ω) character is historically used by academics to represent Null in relational databases. ... A null allele is an allele with the effect of either absence of the gene product at the molecular level, or the absence of function at the phenotypic level. ... 1946 Nobel Prize winner Hermann J. Muller (1890-1967) coined the terms amorph, hypomorph, hypermorph, antimorph and neomorph to classify mutations based on their behaviour in various genetic situations. ... The null character (also null terminator) is a character with the value zero, present in the ASCII and Unicode character sets, and available in nearly all mainstream programming languages. ... Image:ASCII fullsvg There are 95 printable ASCII characters, numbered 32 to 126. ... A null cipher is an ancient form of encryption where the plaintext is mixed with a large amount of non-cipher material. ... In statistics, a null hypothesis is a hypothesis set up to be nullified or refuted in order to support an alternative hypothesis. ... A null morpheme is a morpheme that is realized by a phonologically null affix (an empty string of phonological segments). ... Generally, a null result is a result which is null (nothing): that is, the absence of an observable result. ... KK. Null (born Kazuyuki Kishino (Japanese; 岸野一之), September 13, 1961 in Tokyo) is an experimental multi-instrumentalist. ... Look up zero in Wiktionary, the free dictionary. ...

Fiction

• Null, a character appearing in the Metal Gear Solid: Portable Ops video game
• Nulls, worm-like remains of defeated characters in the animated program ReBoot

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