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dilatational

 - 4 dictionary results

dil⋅a⋅ta⋅tion

  [dil-uh-tey-shuhn, dahy-luh-]
Use dilatational in a Sentence
–noun
1. a dilated formation or part.
2. Pathology. an abnormal enlargement of an aperture or a canal of the body.
3. Surgery.
a. an enlargement made in a body aperture or canal for surgical or medical treatment.
b. a restoration to normal patency of an abnormally small body opening or passageway, as of the anus or esophagus.
4. Mechanics. the increase in volume per unit volume of a homogeneous substance.
Also, dilation.

Origin:
1350–1400; ME (< OF) < L dīlātātiōn- (s. of dīlātātiō), equiv. to dīlātāt(us) spread out (ptp. of dīlātāre to dilate ) + iōn- -ion

Related forms:
dil⋅a⋅ta⋅tion⋅al, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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dil·a·ta·tion   (dĭl'ə-tā'shən, dī'lə-)   
n.  

    1. The act or process of expanding; dilation.

    2. The condition of being expanded or stretched.

    3. A dilated formation or part.

  2. Medicine The condition of being abnormally enlarged or dilated, as of an organ, orifice, or tubular structure: dilatation of the stomach. Also called dilation.

  3. Lengthy explanation or elaboration of a subject in writing or speech.

dil'a·ta'tion·al adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: di·la·ta·tion
Pronunciation: "dil-&-'tA-sh&n, "dI-l&-
Function: noun
1 : the condition of beingstretched beyond normal dimensions especially as a result of overwork or disease or of abnormal relaxation <dilatation of the heart> <dilatation of the stomach>
2 : DILATION 2
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

dilatation dil·a·ta·tion (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.
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