In heraldry, the chevronnel is an ordinary in the shape of a thin upside down v. It is a diminutive of the chevron, and commonly appears in threes, interlaced.
In SCA heraldry, one cannot have a chevronnel as a single charge. This is considered the same as a chevron. They must come in groups.
In period heraldry, a plain field with three chevronnels is seen in 13th century French heraldry. Tudor heraldry has a pale between two chevronnels as a common motif.