isosceles

American  

[ahy-sos-uh-leez] / aɪˈsɒs əˌliz /

adjective

1. (of a straight-sided plane figure) having two sides equal.

   an isosceles triangle; an isosceles trapezoid.

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isosceles British  

/ aɪˈsɒsɪˌliːz /

adjective

1. (of a triangle) having two sides of equal length

2. (of a trapezium) having the two nonparallel sides of equal length

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isosceles Scientific  

/ ī-sŏs′ə-lēz′ /

1. Of or relating to a geometric figure having at least two sides of equal length.

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Etymology

Origin of isosceles

1545–55; < Late Latin < Greek isoskelḗs with equal legs, equivalent to iso- iso- + skél ( os ) leg + -ēs adj. suffix

Example Sentences

But that is quite enough about isosceles triangles.

From Literature

A sort of isosceles triangle is formed, which will eventually collapse.

From Los Angeles Times

Something about isosceles triangles that I learned the year before at Iqra.

From Literature

Evenly spaced branches reached out from a trunk twisted into gentle contrapposto, its clusters of spring green foliage suggesting the outline of an isosceles triangle.

From New York Times

The first warm evenings brought the summer triangle, a brilliant isosceles made up of the stars Vega, Deneb and Altair, to the eastern edge of my yard.

From Washington Post