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A perforated block, commonly of hardened steel used in connection with a punch, for punching holes, as through plates, or blanks from plates, or for forming cups or capsules, as from sheet metal, by drawing.

A genus of Branchiopoda, having a disklike shell, attached by one valve, which is perforated by the peduncle.

ng meat. Beau. & Fl. Dredging box. (a) Same as 2d Dredger. (b) (Gun.) A copper box with a perforated lid; -- used for sprinkling meal powder over shell fuses. Farrow.

To pierce or bore with a drill, or a with a drill; to perforate; as, to drill a hole into a rock; to drill a piece of metal.

Having the ear perforated.

A block or long slat of wood, perforated for the passage of the crowfoot, or cords by which an awning is held up. [Written also uphroe and uvrou.] Knight.

of fossil corals abundant in the Silurian and Devonian rocks, having polygonal cells with perforated walls.

ally have a chambered calcareous shell formed by several united zooids. Many of them have perforated walls, whence the name. Some species are covered with sand. See Rhizophoda.

Any substance, as a easting of iron, a piece of worm-eaten wood, or of triple, etc., perforated with cells like a honeycomb. Honeycomb moth (Zoöl.), the wax moth. -- Honeycomb stomach. (Anat.) See Reticulum.

Formed or perforated like a honeycomb. Each bastion was honeycombed with casements. Motley.

Incapable of being perforated, or bored through.

The contractile membrane perforated by the pupil, and forming the colored portion of the eye. See Eye.

oms for weaving figured goods, consisting of mechanism controlled by a chain of variously perforated cards, which cause the warp threads to be lifted in the proper succession for producing the required figure. -- Jacquard card, one of the perforated cards of a Jacquard apparatus. -- Jackquard loom, a loom with Jacqua…

ing it from wind, rain, etc. ; -- sometimes portable, as a closed vessel or case of horn, perforated tin, glass, oiled paper, or other material, having a lamp or candle within; sometimes fixed, as the glazed inclosure of a street light, or of a lighthouse light.

Resembling, or pertaining to, the genus Madrepora. Madreporic plate (Zoöl.), a perforated plate in echinoderms, through which water is admitted to the ambulacral tubes; -- called also madreporic tubercule.

A perforated stone-faced runner for grinding.

chlorate of potassium. Match box, a box for holding matches. -- Match tub, a tub with a perforated cover for holding slow matches for firing cannon, esp. on board ship. The tub contains a little water in the bottom, for extinguishing sparks from the lighted matches. -- Quick match, threads of cotton or cotton wick s…

Any coral of the genus Millepora, having the surface nearly smooth, and perforated with very minute unequal pores, or cells. The animals are hydroids, not Anthozoa. See Hydrocorallia.

A term supposed to mean, perforated wind instruments of music, as pipes or flutes. Ps. v. (heading).

A perforated block (usually a small piece of metal), provided with an internal or female screw thread, used on a bolt, or screw, for tightening or holding something, or for transmitting motion. See Illust. of lst Bolt.