Ärch1, n.
n. [Fr. arche, fr. L. Lat. arca, for arcus. See Arc.]
- (Geom.) Any part of a circle or other curve; an arc. Hutton.
- (Arch.) A construction of blocks of wood, stone, &c., disposed in the line of a curve, supporting each other by their mutual pressure, and supported at the two ends; as, the arch of a bridge.
K, keystone; S S, springers; C, chord, or span of arch; I I, impost, or platband; C C, columns.
- Any place covered by an arch; as, to pass into the arch of a bridge.
- Any curvature in the form of an arch; as, the arch of the aorta. Dunglison.
A sapphire throne, inlaid with pure Amber, and colors of the flowery arch. Milton. Triumphal arches, magnificent structures erected to adorn a triumph, and perpetuate the memory of the event.