Fortif. Also 8 espaule. [a. Fr. épaule (earlier espaule) shoulder.] The shoulder of a bastion, i.e., the place where the face and flank meet.
1702. Mil. Dict., Epaule.
1704. J. Harris, Lex. Techn., Epaul, espaul.
1727. Chambers, Epaule, or Espaule.
1748. Earthquake of Peru, i. 478. Which makes the Angle of the Epaule 130 Degrees.
1853. Stocqueler, Mil. Encycl., s.v.