dilatation
[dil-uh-tey-shuh n, dahy-luh-]
noun
a dilated formation or part.
Pathology. an abnormal enlargement of an aperture or a canal of the body.
Surgery.
- an enlargement made in a body aperture or canal for surgical or medical treatment.
- a restoration to normal patency of an abnormally small body opening or passageway, as of the anus or esophagus.
Mechanics. the increase in volume per unit volume of a homogeneous substance.
Also dilation.
Origin of dilatation
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Related Words for dilatation
delay, increase, development, expansion, postponement, purview, adjunct, sweep, production, supplement, radius, arm, amplification, span, stretch, annex, spread, branch, scope, protractionExamples from the Web for dilatation
Historical Examples of dilatation
It seems to be as applicable to the dilatation of the heart, as to that of an artery.
Cases of Organic Diseases of the HeartJohn Collins Warren
In these cases the tubular form may rather be due to dilatation than to cohesion.
Vegetable TeratologyMaxwell T. Masters
There may be dilatation of the pupil, but this is not seen in all.
The systole of the heart means its contraction: the diastole of the heart means its dilatation.
William HarveyD'Arcy Powers
By compression or dilatation, they are changed to double refractors of light.
The Boy's Playbook of ScienceJohn Henry Pepper
Online Etymology Dictionary, © 2010 Douglas Harper
dilatation
[dĭl′ə-tā′shən, dī′lə-]
n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.