Spire

(spīr.) (Same der iv.) (Arch.) Among the ancients, the astra gal or torus of the base of a column; also, sometimes, a term to designate the column itself. Among the moderns, a steeple that diminishes by degrees as it ascends, whether conically or pyramid ally. - (Geom.) A progre ive line drawn round a common axis, with an interval between each circle. [s. 847]