T square

noun

: a ruler with a crosspiece or head at one end used in making parallel lines

Word History

First Known Use

1785, in the meaning defined above

Time Traveler
The first known use of T square was in 1785

Dictionary Entries Near T square

tspt

T square

TSR

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Cite this Entry

“T square.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/T%20square. Accessed 31 Dec. 2024.

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Kids Definition

T square

noun
: a ruler with a piece fixed at right angles at one end used to draw parallel lines

More from Merriam-Webster on T square

Britannica.com: Encyclopedia article about T square

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