definitions

dilatation

[ dil-uh-tey-shuh n, dahy-luh- ]
/ ˌdɪl əˈteɪ ʃən, ˌdaɪ lə- /
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noun

a dilated formation or part.
Pathology. an abnormal enlargement of an aperture or a canal of the body.
Surgery.
  1. an enlargement made in a body aperture or canal for surgical or medical treatment.
  2. 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.

RELATED WORDS

delay, increase, development, expansion, postponement, purview, adjunct, sweep, production, supplement, radius, arm, amplification, span, stretch, annex, spread, branch, scope, protraction

Nearby words

dilapidated, dilapidation, dilatancy, dilatant, dilatate, dilatation, dilatation and curettage, dilatator, dilate, dilation, dilation and curettage
Also dilation.

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

Related forms

dil·a·ta·tion·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dilatation

Medicine definitions for dilatation

dilatation

[ dĭl′ə-tā′shən, dī′lə- ]

n.

Physiological, pathological, or artificial enlargement of a cavity, canal, blood vessel, or opening.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.