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Perforation   /pˌərfərˈeɪʃən/   Listen
Perforation

noun
1.
A line of small holes for tearing at a particular place.
2.
A hole made in something.
3.
The act of punching a hole (especially a row of holes as for ease of separation).






WordNet 3.0 © 2010 Princeton University








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"Perforation" Quotes from Famous Books



... at Marsden, a wild, rocky bay below the mouth of the Tyne, five miles from Sunderland, and three from South Shields. The spot chosen by Peter as his future home had been colonised some years before by one "Jack the Blaster," who had performed a series of excavations, and amongst them a huge round perforation from the high land above to the beach below, through which it is said many a cargo has passed ashore without being entered in the books of the excise. Here the cliff is formed of hard magnesian limestone, and rises perpendicularly from the beach more than a hundred feet. When Peter set ...
— Notes and Queries, Number 218, December 31, 1853 • Various

... also employed to fill the bends with mercury when a measurement is taken or when the pump is at rest. On the shelf is a tube, 160 mm. high and 20 mm. in diameter, into which the end of the fall-tube dips; its side has a circular perforation into which fits a small cork with a little tube bent at right angles. With the hard end of a file and a few drops of turpentine the perforation can be easily made and shaped in a few minutes. By revolving the little bent tube through 180 deg. ...
— Scientific American Supplement, No. 303 - October 22, 1881 • Various

... like mad, and wanting doctors. I had no mind to run, and something had got to be done. So Simon Stagers and I talked it over. The end of it was, he took worse of a sudden, and got so he didn't know nothing. Then I rushed for a doctor. He said it was a perforation, and there ought to have been a doctor when he was ...
— The Autobiography of a Quack And The Case Of George Dedlow • S. Weir Mitchell

... sea-water over the adjacent lands, when forced through a perforation in a rocky shore; both its egress and ingress are attended with a rumbling noise, and the spray is often very injurious to the ...
— The Sailor's Word-Book • William Henry Smyth

... bearing traces of old wounds badly healed. The bony tissue of the skull was in an unhealthy state and the trepanation had evidently been part of medical treatment. At Saint-Martin-la-Riviere (Vienna), a tomb dating from Neolithic times contained five trepanned crania, on one of which the perforation had been made by scraping. In this tomb was also found a round piece of skull with a hole in it, which had doubtless been used as a pendant. The other objects found in this sepulchre were of a remarkable character, and included hatchets ...
— Manners and Monuments of Prehistoric Peoples • The Marquis de Nadaillac

... obstructed from some one of the above causes, often forms an ulcerous opening at its upper extremity, just below the internal canthus, for the escape of the pus that usually collects in a sac at that point. This perforation is called "Fistula Lachrymalis." The tears, entering the canal at its punctum, are carried along till they pass ...
— The Dog - A nineteenth-century dog-lovers' manual, - a combination of the essential and the esoteric. • William Youatt

... that passed over them. When they left the sick-chamber, he left also, and walked the floor anxiously while they sat in consultation, talking together in low tones. Now and then he caught words, such as "peritoneum," "lesion," "perforation," etc., the fatal meaning of which he ...
— Danger - or Wounded in the House of a Friend • T. S. Arthur

... meal cheap. Wife 18 at marriage and one child died. They feed pretty largely but unhealthily, and eat 'pieces' at lunch-time. At time of visit, though very dirty, they were tidier than ever found before. The eldest child has chronic suppuration and large perforation of ear. Housing: five in two rooms. Evidence from Police, Parish Sister, Factor, Soldiers' Society, ...
— New Worlds For Old - A Plain Account of Modern Socialism • Herbert George Wells

... excavation, pit, perforation, rent, fissure, opening, aperture, delve, cache, concavity, mortise, puncture, orifice, eyelet, crevice, loophole, interstice, gap, spiracle, vent, bung, pothole, manhole, scuttle, scupper, muset, muse; cave, holt, den, lair, retreat, cover, hovel, burrow. Antonyms: imperforation, ...
— Putnam's Word Book • Louis A. Flemming

... part of the caterpillar's back in many places, and in each deposits an egg, by means of the two parts of the sheath uniting together, and thus forming a tube down which the egg is conveyed into the perforation made by the piercer of the fly. The caterpillar unconscious of what will ensue keeps feeding on, until it changes into a chrysalis; while in that torpid state, the eggs of the ichneumon are hatched, and the interior of the body of the caterpillar serves as food for the caterpillars ...
— The Mirror of Literature, Amusement, and Instruction - Volume 12, No. 339, Saturday, November 8, 1828. • Various

... outline of the body is more nearly rectangular than in other Flat-fishes from the obtuseness of the snout and caudal end, and the somewhat uniform breadth of the body. The surface is rough from the presence of long slender spines on the scales. There is a large perforation in the septum between the gill cavities, but this occurs also in Arnoglossus megastoma, which is placed in another genus. But the generic character of Zeugopterus, which is most important for the present discussion, is the prolongation of the dorsal ...
— Hormones and Heredity • J. T. Cunningham

... succession half a dozen shots rang out. I fancied I could almost hear the ripping and tearing of the tough rubber-coated silken wings of the hydroaeroplane as the wind widened the perforation the gun had made. ...
— The War Terror • Arthur B. Reeve

... either side open other chambers into which the electricity permits us to see quite clearly, and opposite, at the end of the hall, a large crypt is revealed, which one divines instinctively must be the resting-place of the Pharaoh. What a prodigious labour must have been entailed by this perforation of the living rock! And this hypogeum is not unique. All along the "Valley of the Kings" little insignificant doors—which to the initiated reveal the "Sign of the Shadow," inscribed on their lintels—lead to other subterranean ...
— Egypt (La Mort De Philae) • Pierre Loti

... blades mentioned above are of two kinds, and either may be used for this work. Those generally used are of a straight diagonal shape, making a perforation the shape of a diamond, *; the others are perfectly round, tapering gradually to a fine point. To fix them in the boxwood handles, place the blade in a vise, leaving the unpolished part above the jaws; hold the handle ...
— Scientific American Supplement, No. 561, October 2, 1886 • Various

... they are brought away from their own country. Preposterous however as this custom may appear, it is not confined to the Nias people. Some of the women of the inland parts of Sumatra, in the vicinity of the equinoctial line (especially those of the Rau tribes) increase the perforation of their ears until they admit ornaments of two or three inches diameter. There is no circumstance by which the natives of this island are more obviously distinguished than the prevalence of a leprous scurf with ...
— The History of Sumatra - Containing An Account Of The Government, Laws, Customs And - Manners Of The Native Inhabitants • William Marsden

... arm, and staring at it incredulously; Lanyard's gaze was drawn to the same spot—a ragged perforation in the sleeve of the pilot's leather surtout, just above ...
— The Lone Wolf - A Melodrama • Louis Joseph Vance



Words linked to "Perforation" :   perforate, puncture, hole



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