three-square
[ three-skwair ]
/ ˈθriˈskwɛər /
adjective
having an equilateral triangular cross section, as certain files.
Origin of three-square
1400–50; late Middle English
thre square threefold, modeled on
foursquare
Words nearby three-square
Example sentences from the Web for three-square
The triangular or three-square form is such a form also as is seldom chosen by any that may make another choise.
The plant-lore and garden-craft of Shakespeare |Henry Nicholson EllacombeThree-square files are made with equilateral triangular sections, as in Fig. 2223.
Modern Machine-Shop Practice, Volumes I and II |Joshua Rose
British Dictionary definitions for three-square
three-square
adjective
having a cross section that is an equilateral triangle
a three-square file