dilatation
Americannoun
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a dilated formation or part.
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Pathology. an abnormal enlargement of an aperture or a canal of the body.
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Surgery.
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an enlargement made in a body aperture or canal for surgical or medical treatment.
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a restoration to normal patency of an abnormally small body opening or passageway, as of the anus or esophagus.
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Mechanics. the increase in volume per unit volume of a homogeneous substance.
Other Word Forms
Etymology
Origin of dilatation
1350–1400; Middle English (< Old French ) < Latin dīlātātiōn- (stem of dīlātātiō ), equivalent to dīlātāt ( us ) spread out (past participle of dīlātāre to dilate ) + iōn- -ion
Vocabulary lists containing dilatation
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Brachial flow-mediated dilatation was significantly higher following high-flavanol cocoa compared to low-flavanol cocoa 30 and 90 minutes after the stressful period.
From Science Daily • Nov. 18, 2024
In rare cases, the stomach can expand to a dangerous size, known as acute gastric dilatation.
From Washington Post • Nov. 21, 2022
The major disease threatening captive Spix’s was proventricular dilatation disease, which affects the nerves in parrots’ gastrointestinal tract and causes them to slowly waste away.
From Science Magazine • Jun. 8, 2022
Most headaches, said Dr. Wolff, come from the dilatation of these blood vessels or from some growth or injury, like a brain tumor, that exerts a pull on them.
From Time Magazine Archive
If dilatation of the heart be so great that clots form in its cavities, speedy death is probable.
From A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases by Various
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
