from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To shorten by or as if by cutting off. See Synonyms at shorten.
  • transitive v. To shorten (a number) by dropping one or more digits after the decimal point.
  • transitive v. To replace (the edge of a crystal) with a plane face.
  • adj. Appearing to terminate abruptly, as a leaf of a tulip tree or a coiled gastropod shell that lacks a spire.
  • adj. Truncated.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To shorten something as if by cutting off part of it.
  • v. To shorten a decimal number by removing trailing (or leading) digits; to chop.
  • v. To replace a corner by a plane (or to make a similar change to a crystal).
  • adj. truncated
  • adj. Having an abrupt termination.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Appearing as if cut off at the tip.
  • transitive v. To cut off; to lop; to maim.

from The Century Dictionary and Cyclopedia

  • To reduce in size or quantity by cutting; cut down; maim.
  • In crystallography, to cut off an angle or edge by a plane section.
  • Truncated.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. approximate by ignoring all terms beyond a chosen one
  • v. make shorter as if by cutting off
  • v. replace a corner by a plane
  • adj. terminating abruptly by having or as if having an end or point cut off


from The American Heritage® Dictionary of the English Language, 4th Edition

Latin truncāre, truncāt-, from truncus, trunk; see terə-2 in Indo-European roots.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin truncātus, perfect passive participle of truncō ("maim, reduce to a trunk"); see trunk as a verb.


  • But in January 2011, HCL said, News International asked whether HCL was capable of helping "truncate" - meaning delete - "a particular database" in the e-mail system.

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  • Alternatively you could always press the "truncate" button which will remove all chats from the database.

  • Young still strongly believes in the new ship, even as the Navy seeks to "truncate" the number it buys from seven ships to three and return to building Arleigh Burke DDG 51-class Aegis destroyers, which the Navy leadership claims are needed to combat new threats like ballistic missiles that the DDG 1000s weren't designed to defeat.

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  • This breathtaking maneuver would provide Walter Ulbricht, the East German leader, with the authority to truncate Berlin and stop the stampede of refugees.

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  • "We have a real problem if members of the General Assembly are going and trying to influence and truncate an ethics committee process so that they can get the intended result that they want and then use that for impeachment," he said.

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  • "People like to truncate things in order to understand them but in reality there's no clear delineation."

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  • It turns out that CAD software will calculate a convergance, but truncate the lines at the edge of the world as the software knows it.

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  • Growing evidence that health claims truncate product search.

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  • Elites try to truncate the presidential primary contests.

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  • I think that the answer is that people mentally truncate the upper value of what you might win.

    St. Petersburg Paradox, Arnold Kling | EconLog | Library of Economics and Liberty


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  • Cold truncating surgeon's blade

    razes what was St Tropezed.

    - Peter Reading, C, 1984

    August 2, 2008