perforation

[ pur-fuh-rey-shuhn ]

noun

1. a hole, or one of a series of holes, bored or punched through something, as those between individual postage stamps of a sheet to facilitate separation.
2. a hole made or passing through a thing.
3. the act of perforating.
4. the condition or state of being perforated. perforated.

perforation

/ ˌpɜːfəˈreɪʃən /

noun

1. the act of perforating or the state of being perforated
2. a hole or holes made in something
3. 1. a method of making individual stamps, coupons, etc, easily separable by punching holes along their margins
   2. the holes punched in this way perf

Word History and Origins

Origin of perforation¹

1400–50; late Middle English < Medieval Latin perforātiōn- (stem of perforātiō ) a boring through. See perforate, -ion

Example Sentences

They showed that the previously accepted idea that azoles kill the pathogen cell by causing perforation of the outer cell membrane does not apply.

From Science Daily

The PtNRGrid also includes perforations, which enable physicians to insert probes to stimulate the brain with electrical signals, both for mapping and for therapy.

From Science Daily

Consumers are being asked to look out for strange perforations around the edge of a stamp, a shine to the surface or the colour looking off.

From BBC

The F.D.A. said the manufacturer of the device, Abiomed, should have notified the agency more than two years ago, when the company first posted an update on its website about the perforation risk.

From New York Times

In tests in animals, the researchers found that every animal treated with the new gel showed rapid sealing, and there were no perforations, leakages, or bleeding in the week following the treatment.

From Science Daily