Skip to main content
Select Source:

null

null / nəl/ • adj. 1. having no legal or binding force; invalid: the establishment of a new interim government was declared null and void. 2. having or associated with the value zero. ∎  Math. (of a set or matrix) having no elements, or only zeros as elements. ∎  lacking distinctive qualities; having no positive substance or content: his curiously null life. • n. poetic/lit. a zero. ∎  a dummy letter in a cipher. ∎  Electr. a condition of no signal. ∎  a direction in which no electromagnetic radiation is detected or emitted. • v. [tr.] Electr. combine (a signal) with another in order to create a null; cancel out.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"null." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"null." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/null-1

"null." The Oxford Pocket Dictionary of Current English. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/null-1

null

null not valid (n. and void) XVI; insignificant; non-existent XVIII. — (O)F. nul, fem. nulle, or L. nūllus, -a no, none, f. ne (see NO3) + ūllus any, f. ūnus ONE.
So nullify make null XVI. — late L. nullificāre despise. nullification XVIII. nullity XVI. — F. or medL.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"null." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"null." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/null-2

"null." The Concise Oxford Dictionary of English Etymology. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/null-2

null

null null and void having no legal or binding force.
null hypothesis in a statistical test, the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"null." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"null." The Oxford Dictionary of Phrase and Fable. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/null

"null." The Oxford Dictionary of Phrase and Fable. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/null

Null

NULL

Of no legal validity, force, or effect; nothing. As used in the phrase null and void, refers to something that binds no one or is incapable of giving rise to any rights or duties under any circumstances.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Null." West's Encyclopedia of American Law. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"Null." West's Encyclopedia of American Law. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/law/encyclopedias-almanacs-transcripts-and-maps/null

"Null." West's Encyclopedia of American Law. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/law/encyclopedias-almanacs-transcripts-and-maps/null

2,4-D

: see herbicide.

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"2,4-D." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"2,4-D." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/24-d

"2,4-D." The Columbia Encyclopedia, 6th ed.. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/24-d

null

nullannul, cull, dull, gull, hull, lull, mull, null, scull, skull, Solihull, trull, Tull •seagull • multihull • monohull •numbskull • Elul

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"null." Oxford Dictionary of Rhymes. . Encyclopedia.com. 17 Aug. 2017 <http://www.encyclopedia.com>.

"null." Oxford Dictionary of Rhymes. . Encyclopedia.com. (August 17, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/null-0

"null." Oxford Dictionary of Rhymes. . Retrieved August 17, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/null-0