three-square

[ three-skwair ]

adjective
  1. having an equilateral triangular cross section, as certain files.

Origin of three-square

1
1400–50; late Middle English thre square threefold, modeled on foursquare

Words Nearby three-square

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How to use three-square in a sentence

British Dictionary definitions for three-square

three-square

adjective
  1. having a cross section that is an equilateral triangle: a three-square file

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