Morley triangle

Etymology
Named for Anglo-American mathematician.

Noun

 * 1)  Any of a number of triangles described in Morley's trisector theorem, especially the equilateral triangle formed from the points of intersection of adjacent angle trisectors of a given triangle.

Translations

 * French: triangle de Morley
 * German: Morley-Dreieck
 * Italian: primo triangolo di Morley, triangolo di Morley