isosceles

adjective

isos·ce·les | \ ī-ˈsäs-ˌlēz

, -ˈsä-sə-\

Definition of isosceles

1 of a triangle : having two equal sides — see triangle illustration

2 of a trapezoid : having the two nonparallel sides equal

Recent Examples on the Web

Geographically, Richland, Hammonton, and Absecon don't form an isosceles triangle. — Phil Anastasia, Philly.com, "St. Augustine's new head coach will continue non-public rivalry," 26 May 2017

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