to breathe.-a slender stalk or blade in vegetation; as, a spire grass or of wheat.-a tapering body that shoots up or out to a point in a conical or pyramidal form. specifically (arch.), the roof of a tower when of a pyramidal form and high in proportion to its width; also, the pyramidal or aspiring termination of a tower which can not be said to have a roof, such as that of strasburg cathedral; the tapering part of a steeple, or the steeple itself.-a tube or fuse for communicating fire to the chargen in blasting.-the top, or uppermost point, of anything; the summit.-to shoot forth, or up in, or as if in, a spire.-a spiral; a curl; a whorl; a twist.-the part of a spiral generated in one revolution of the straight line about the pole. see spiral, n.