scheme arch(n = noun.artifact) diminished arch, skeen arch, skene arch - an arch whose height is less than half its width;
is a kind of arch

abutment arch, alveolar arch, aortic arch, arch, arch brick, arch over, arch stone, arch support, basket-handle arch, bell arch, branchial arch, broken arch, camber arch, color scheme, colour scheme, corbel arch, diminished arch, drop arch, fallen arch, flat arch, four-centered arch, fraudulent scheme, gill arch, gothic arch, haemal arch, hemal arch, horseshoe arch, in an arch manner, incentive scheme, keel arch, lancet arch, maya arch, mayan arch, metatarsal arch, moorish arch, neural arch, ogee arch, pectoral arch, pelvic arch, pier arch, pointed arch, proscenium arch, pump-and-dump scheme, pyramid scheme, rampant arch, roman arch, round arch, rowlock arch, safety arch, scheme, scoinson arch, sconcheon arch, segmental arch, semicircular arch, shouldered arch, skeen arch, skene arch, skew arch, steel arch bridge, straight arch, sunken arch, superciliary arch, three-centered arch, trefoil arch, trimmer arch, triumphal arch, trumpet arch, tudor arch, vertebral arch, zygomatic arch