n.; pl.Flanches [ Prov. E., a projection, OF. flanche flank. See Flank. ] 1. A flange. [ R. ]. (Her.) A bearing consisting of a segment of a circle encroaching on the field from the side. [ 1913 Webster ]
☞ Flanches are always in pairs. A pair of flanches is considered one of the subordinaries. [ 1913 Webster ]