Definition of French brace in English:

French brace

noun

  • 1Woodworking a brace and bit drill on which the user applies pressure from the chest while drilling; compare "breast-drill".

  • 2Theatre a triangle of wood hinged to the back of a flat and supporting it when opened out and weighted.

Origin

Mid 19th century; earliest use found in Charles Holtzapffel (1806–1847), mechanical engineer and technical writer.