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l, etc. See under Ear, Edible, etc. -- Snail borer (Zoöl.), a boring univalve mollusk; a drill. -- Snail clover (Bot.), a cloverlike plant (Medicago scuttellata, also, M. Helix); -- so named from its pods, which resemble the shells of snails; -- called also snail trefoil, snail medic, and beehive. -- Snail flower (B…

The ace of spades in omber and quadrille.

The shaft, mandrel, or arbor, in a machine tool, as a lathe or drilling machine, etc., which causes the work to revolve, or carries a tool or center, etc.

A small party of men assembled for drill, inspection, or other purposes.

nnecting the working beam with the rope carrying the tools, for lowering the tools as the drilling progresses.

A screw link, to which is attached the rope of a rope-drilling apparatus, for feeding and slightly turning the drill jar at each stroke.

To bore; to drill or thrill. See Thrill. [Obs. or Prov.] That with a spear was thirled his breast bone. Chaucer.

To perforate by a pointed instrument; to bore; to transfix; to drill. [Obs.] He pierced through his chafed chest With thrilling point of deadly iron brand. Spenser.

To be drilled in military exercises; to do duty in a military company.

chool, under Normal, a. -- Training day, a day on which a military company assembles for drill or parade. [U. S.] -- Training ship, a vessel on board of which boys are trained as sailors.

traverse work. Sir H. Wotton. The ridges of the fallow field traverse. Hayward. Traverse drill (Mach.), a machine tool for drilling slots, in which the work or tool has a lateral motion back and forth; also, a drilling machine in which the spindle holder can be adjusted laterally.

e pitch is less, and the inclination greater, at the muzzle than at the breech. -- Twist drill, a drill the body of which is twisted like that of an auger. See Illust. of Drill. -- Uniform twist (Firearms), a twist of which the spiral course has an equal pitch throughout.

Stretched out face upward; flat on the back. [Obs.] " He lay upright." Chaucer. Upright drill (Mach.), a drilling machine having the spindle vertical.

aments. -- Vertical circle (Astron.), an azimuth circle. See under Azimuth. -- Vertical drill, an drill. See under Upright. -- Vertical fire (Mil.), the fire, as of mortars, at high angles of elevation. -- Vertical leaves (Bot.), leaves which present their edges to the earth and the sky, and their faces to the hori…

. -- Wood apple (Bot.). See Elephant apple, under Elephant. -- Wood baboon (Zoöl.), the drill. -- Wood betony. (Bot.) (a) Same as Betony. (b) The common American lousewort (Pedicularis Canadensis), a low perennial herb with yellowish or purplish flowers. -- Wood borer. (Zoöl.) (a) The larva of any one of numerous s…

Hence, one of a body of soldiers who adopt the dress and drill of the Zouaves, as was done by a number of volunteer regiments in the army of the United States in the Civil War, 1861-65.