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square bracket

[ skwair brak-it ]

noun

  1. Printing. one of two marks [ or ] used in writing or printing to enclose parenthetical matter, interpolations, etc. Compare curly bracket ( def ).


square bracket

noun

  1. either of a pair of characters [ ], used to enclose a section of writing or printing to separate it from the main text
  2. Also calledbracket either of these characters used as a sign of aggregation in mathematical or logical expressions indicating that the expression contained in the brackets is to be evaluated first and treated as a unit in the evaluation of the whole
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of square bracket1

First recorded in 1885–90

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square-bashingsquare centimeter