Definition of perforation
1 : the act or process of perforating
2a : a hole or pattern made by or as if by piercing or boringb : one of the series of holes (as between rows of postage stamps) in a sheet that serve as an aid in separation
Examples of perforation in a Sentence
an infection that can cause perforation of the intestine
absentmindedly made perforations in his paper with his pencil
Recent Examples of perforation from the Web
An unexpected perforation of her lower intestine leaked fecal matter into her body.
Peerwani said medical and forensic literature have described several injuries that can occur from resuscitation, among them perforations of the stomach and colon, liver, spleen and pancreatic lacerations, rupture of the heart and rib fractures. ‘
The main difference between those bands and Nike-specific ones is perforation: both are made out of strong elastomer silicone, but the small holes in the Nike bands offer more ventilation during sweaty workouts.
Reduced blood flow in the intestines caused by cocaine can lead to ulcers and perforations.
There is a lot of perforation on the upper, so despite the thickness of the material, my feet felt cool even after a long run in warm weather.
Were limpets or mosasaurs responsible for the perforations in the ammonite Placenticeras?
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'perforation'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of perforation
PERFORATION Defined for English Language Learners
Definition of perforation for English Language Learners
: a small hole or series of small holes in paper, cardboard, etc.
medical : a hole in part of the body caused by an accident or disease
Medical Definition of perforation
1: the act or process of perforating; specifically : the penetration of a body part through accident or disease spontaneous perforation of the sigmoid colon in the presence of diverticulosis—Journal of the American Medical Association
2a: a rupture in a body part caused especially by accident or diseaseb: a natural opening in an organ or body part
Seen and Heard
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