dilate

[dahy-leyt, di-, dahy-leyt]
verb (used with object), dilated, dilating.
1.
to make wider or larger; cause to expand.
2.
Archaic. to describe or develop at length.
verb (used without object), dilated, dilating.
3.
to spread out; expand.
4.
to speak or write at length; expatiate (often followed by on or upon ).

Origin:
1350–1400; Middle English dilaten < Middle French dilater, Latin dīlātāre to spread out, equivalent to dī- di-2 + lāt(us) broad + -āre infinitive suffix

dilatability, noun
dilatable, adjective
nondilatability, noun
nondilatable, adjective
overdilate, verb, overdilated, overdilating.
redilate, verb, redilated, redilating.
self-dilated, adjective
subdilated, adjective
undilatable, adjective
undilated, adjective
undilating, adjective

dilate, dilute.


1. See expand.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
dilate (daɪˈleɪt, dɪ-)
 
vb
1.  to expand or cause to expand; make or become wider or larger: the pupil of the eye dilates in the dark
2.  (intr; often foll by on or upon) to speak or write at length; expand or enlarge
 
[C14: from Latin dīlātāre to spread out, amplify, from dis- apart + lātus wide]
 
di'latable
 
adj
 
dilata'bility
 
n
 
di'latableness
 
n
 
di'lation
 
n
 
dilatation
 
n
 
dila'tational
 
adj
 
dilative
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

dilate
late 14c., from O.Fr. dilater, from L. dilatare "make wider, enlarge," from dis- "apart" + latus "wide" (see latitude). Related: Dilated.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

dilate di·late (dī-lāt', dī'lāt')
v. di·lat·ed, di·lat·ing, di·lates
To make or become wider or larger.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Histamine is produced by the human body to dilate blood vessels.
When a red blood cell reaches any tissue in need of oxygen it releases nitric
  oxide in order to dilate the capillaries.
The pain neurons, in turn, release brain chemicals that cause blood vessels to
  dilate and inflame.
They also excite the body's pain receptors and dilate blood vessels.
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