from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A tool or machine that makes holes, or perforates, materials such as paper and card.
- n. A machine that can bore a tunnel underground.
from the GNU version of the Collaborative International Dictionary of English
- n. One who, or that which, perforates; esp., a cephalotome.
from The Century Dictionary and Cyclopedia
- n. One who or that which perforates, bores, or pierces.
- n. The keyboard of the monotype type-setting and -casting machine; more precisely, the mechanism of the monotype keyboard which perforates the paper ribbon so that it will control the movements of the casting mechanism.
- n. In archaeology, a small chipped stone implement with a rather long and slender point and usually a broad base, supposed to have been used for drilling or boring holes. The name is also sometimes applied to other implements which have been evidently used for making holes, such as bone awls, etc.
- n. A device for rapidly producing the perforations of a tape corresponding to the Morse code of signals and used in machine telegraphy.
Sorry, no etymologies found.
This was done in a special machine of Edison's invention, called a perforator, consisting of a series of punches operated by a bank of keys -- typewriter fashion.
The piles are constructed by first ramming a hole in the ground by repeatedly dropping a conical "perforator" weighing some two tons.
The view Fig. 52 shows the "perforator" and the tamping apparatus at work.
He brought out two huge files and a perforator and proceeded to show us how to make holes with it and how to file our papers.
A newer version of the flap–tummy tuck method is called DIEP reconstruction deep inferior epigastric perforator reconstruction, which uses the same fatty tissue from the tummy but leaves your abdominal muscles intact.
Two lanceolate basalt points and a slate perforator (Tom Dillehay) [LARGERIMAGE]
-- Mr. Gay has rendered his saw completer by the invention of a tubular perforator for drilling the preliminary well.
Behind the loom that weaves so many yards of cloth, behind the steel-plate perforator, and behind the safe in which dividends are hoarded, we should see man, the artisan of production, more often than not excluded from the feast he has prepared for others.
This perforator is raised and dropped by a machine resembling an ordinary pile driver.
This, in some animals, e. g., the salamander, is prolonged into a barbed spear-like process or perforator, which probably facilitates the entrance of the spermatozoön into the ovum.