di·late

[dahy-leyt, di-, dahy-leyt] verb, di·lat·ed, di·lat·ing.
verb (used with object)
1.
to make wider or larger; cause to expand.
2.
Archaic. to describe or develop at length.
verb (used without object)
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

di·lat·a·bil·i·ty, noun
di·lat·a·ble, adjective
non·di·lat·a·bil·i·ty, noun
non·di·lat·a·ble, adjective
o·ver·di·late, verb, o·ver·di·lat·ed, o·ver·di·lat·ing.
re·di·late, verb, re·di·lat·ed, re·di·lat·ing.
self-di·lat·ed, adjective
sub·di·lat·ed, adjective
un·di·lat·a·ble, adjective
un·di·lat·ed, adjective
un·di·lat·ing, adjective

dilate, dilute.


1. See expand.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
dilate (daɪˈleɪt, dɪ-) [Click for IPA pronunciation guide]
 
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
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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
These medications help dilate the blood vessels, improving blood flow, reducing blood pressure and improving heart function.
They also excite the body's pain receptors and dilate blood vessels.
Histamine is produced by the human body to dilate blood vessels.
It sends out signals that dilate outer blood vessels and induce sweating, which results in heat loss.
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