sca·​lene | \ ˈskā-ˌlēn How to pronounce scalene (audio) , skā-ˈlēn \

Definition of scalene

of a triangle
: having the three sides of unequal length — see triangle illustration

Examples of scalene in a Sentence

Recent Examples on the Web The elliptical motion of those legs, combined with its scalene triangle body shape, given the machine inherent stability. David Grossman, Popular Mechanics, "This Robot Doesn't Need Fancy Sensors to Run," 3 May 2017 Using an exercise from the DAoM book Games and Puzzles, Strogatz handed each of his students a pair of scissors, as well as a piece of paper with a scalene triangle drawn in the middle of it. Jessica Lahey, The Atlantic, "Teaching Math to People Who Think They Hate It," 6 Oct. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'scalene.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of scalene

1734, in the meaning defined above

History and Etymology for scalene

Late Latin scalenus, from Greek skalēnos, literally, uneven; perhaps akin to Greek skolios crooked, skelos leg — more at isosceles

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The first known use of scalene was in 1734

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Cite this Entry

“Scalene.” The Dictionary, Merriam-Webster Inc., Accessed 14 December 2019.

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More Definitions for scalene


sca·​lene | \ ˈskā-ˌlēn, skā-ˈ How to pronounce scalene (audio) \

Medical Definition of scalene

 (Entry 1 of 2)

: of, relating to, or being a scalenus muscle



Medical Definition of scalene (Entry 2 of 2)

: scalenus

called also scalene muscle

More from Merriam-Webster on scalene

Rhyming Dictionary: Words that rhyme with scalene

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