معنی کلمه :‌ couche

Not erect; inclined; -- said of anything that is usually erect, as an escutcheon.

Chamber; house; -- used in Ca"ma*ra dos Pa"res, and Ca"ma*ra dos De`pu*ta"dos. See Legislature.

Lying on its side; thus, a chevron couche is one which emerges from one side of the escutcheon and has its apex on the opposite side, or at the fess point.