square bracket
noun
Origin of square bracket
First recorded in 1885–90
Words nearby square bracket
squander,
squanto,
square,
square and rabbet,
square away,
square bracket,
square centimeter,
square dance,
square deal,
square foot,
square go
British Dictionary definitions for square bracket
square bracket
noun
either of a pair of characters [ ], used to enclose a section of writing or printing to separate it from the main text
Also called: bracket
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