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Word of the Day Tuesday, June 9, 2026

protractor

/ˈproʊtræktər/ noun · British & US
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What does protractor mean?

noun

A technical drawing instrument used for measuring and drawing angles, typically consisting of a straightedge with a rotating arm and a set of markings for measuring angles.

Example

"The student used a protractor to measure the angle of the triangle."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for protractor

Rhymes with protractor

Etymologically related