T-square(redirected from T-squares)
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A rule having a short, sometimes sliding, perpendicular crosspiece at one end, used by drafters for establishing and drawing parallel lines.
(Tools) a T-shaped ruler used in mechanical drawing, consisting of a short crosspiece, which slides along the edge of the drawing board, and a long horizontal piece: used for drawing horizontal lines and to support set squares when drawing vertical and inclined lines
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|Noun||1.||T-square - a square used by draftsmen to draw parallel lines|
drafting instrument - an instrument used by a draftsman in making drawings
square - a hand tool consisting of two straight arms at right angles; used to construct or test right angles; "the carpenter who built this room must have lost his square"