adj.
Pronunciation: ī - ' säs- ˌ l ē z, - ' sä-s ə -
Function: adjective
Etymology: Late Latin isosceles having two equal sides, from Greek isoskel ē s, from is- + skelos leg; perhaps akin to Old English sceol wry
Date: 1551
1 of a triangle : having two equal sides ― see TRIANGLE illustration
2 of a trapezoid : having the two nonparallel sides equal