# T square

noun
1.
a T -shaped ruler, used primarily in mechanical drawing, having a short crosspiece that slides along the edge of the drawing board as a guide to the perpendicular longer section in making parallel lines, right angles, etc., and as a support for triangles.
Origin of T square
1775-1785
1775-85
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for t-square
Contemporary Examples
• The full moon, Tuesday, in a t-square formation with the Sun and Neptune, urges you to balance your will with your want.

May 13, 2011
Historical Examples
• If a keyway is to be cut by hand through a bore, as in a pulley or gear-wheel bore, its width should be marked with a t-square.

• I knocked the t-square out of the way and the cover snapped down.

John Keith Laumer
• The line B′B is represented by the edge of an ordinary t-square sliding against the edge of a drawing-board.

• These guide lines should invariably be laid-in with the t-square and triangle.

Frank Chouteau Brown
• Fig. 1461 represents the t-square, whose blade is some distance from the end of the back and is sometimes placed in the middle.

• The t-square sketch is very valuable in cultivating the sense of proportion.

• It was a short hall, set like the top bar of a t-square at the end of a long, door-lined corridor.

Louis Joseph Vance
• A squire is a measuring-square, or t-square, as explained in my Dictionary; it is used for measuring right angles with exactitude.

• The t-square is another modification of the try square, its principal use being for draughting purposes.

J. S. Zerbe
British Dictionary definitions for t-square

## T-square

noun
1.
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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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### Difficulty index for T square

Few English speakers likely know this word

### Word Value for t

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