[dahy-leyt, di-, dahy-leyt]
- to make wider or larger; cause to expand.
- Archaic. to describe or develop at length.
- to spread out; expand.
- to speak or write at length; expatiate (often followed by on or upon).
Origin of dilate
1350–1400; Middle English dilaten < Middle French dilater, Latin dīlātāre to spread out, equivalent to dī- di-2 + lāt(us) broad + -āre infinitive suffix
SynonymsSee more synonyms on Thesaurus.com
1. See expand.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dilate
It would be needless to dilate upon the value of such a work.
She was pale and fragile, yet she seemed to expand and to dilate with force and energy.The Doctor of Pimlico
William Le Queux
In that September morning his soul seemed to dilate with every breath he drew.The Child of Pleasure
Little need to dilate on the situation as it appeared to Mrs Iver!Tristram of Blent
Yet how will it dilate on the Odyssean smell of hemp and tar!Journeys to Bagdad
Charles S. Brooks
- to expand or cause to expand; make or become wider or largerthe pupil of the eye dilates in the dark
- (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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for dilate
Online Etymology Dictionary, © 2010 Douglas Harper
- 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.