from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To make wider or larger; cause to expand.
  • intransitive v. To become wider or larger; expand.
  • intransitive v. To speak or write at great length on a subject; expatiate.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To enlarge; to make bigger.
  • v. To become wider or larger; to expand.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Extensive; expanded.
  • intransitive v. To grow wide; to expand; to swell or extend in all directions.
  • intransitive v. To speak largely and copiously; to dwell in narration; to enlarge; -- with on or upon.
  • transitive v. To expand; to distend; to enlarge or extend in all directions; to swell; -- opposed to contract
  • transitive v. To enlarge upon; to relate at large; to tell copiously or diffusely.

from The Century Dictionary and Cyclopedia

  • To expand; distend; spread out; enlarge or extend in all directions: as, air dilates the lungs; to dilate the pupil of the eye.
  • To set forth at length; relate at large; relute or describe with full particulars; enlarge upon.
  • Synonyms To swell, spread out, amplify.
  • To spread out; expand; distend; swell; enlarge.
  • To speak at length; dwell on particulars; enlarge; expatiate; descant: used absolutely or with upon or on.
  • Broad; extended.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. become wider
  • v. add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing


from The American Heritage® Dictionary of the English Language, 4th Edition

Middle English dilaten, from Old French dilater, from Latin dīlātāre, to enlarge : dī-, dis-, apart; see dis- + lātus, wide.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Old (and modern) French dilater, from Latin dilatare ‘spread out’, from di- + latus ‘wide’.


  • WORDS ACCENTED ON THE LAST SYLLABLE: address _address'_ adept _adept'_ adult _adult'_ ally _ally'_ commandant _commandänt '(ä as in arm) _ contour _contour'_ dessert _dessert'_ dilate _dilate'_ excise _eksiz'_ finance _finance'_ grimace _grimace'_ importune _importune'_ occult _occult'_ pretence _pretence'_ research _research'_ robust _robust'_ romance _romance'_ tirade _tirade'_

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  • The orb seemed to dilate and constrict, making a slight whirring noise as it did so.

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  • It was the early Greek custom to dilate in great detail on everything that had led up to the play, the latter being itself, as a rule merely the catastrophe which had inevitably to ensue on the facts related in the prologue.

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  • When the body is active, generally in fight or flight mode, the sympathetic system engages, heart rate quickens, pupils dilate and energy is directed towards allowing the body to react quickly.

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  • I never dilate, even with drugs and the nurse cheerfully informed me as I was being wheeled in for my 1st C-Section that I would have been one of those dead-on-the-trail mothers if I was giving birth in a wagon train.

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  • I can almost feel my pupils dilate; my dick gets wood.

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  • While it does not have to dilate as fully as with a full-term birth, the uterus also does not have enough time to process the rapid pace of conception, birth, and loss that occurs in a miscarriage.

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  • It's fitting that the name, from the Latin for mirror (the museum is housed in a former observatory), is close etymological kin to speculum, an instrument used, as every woman knows, to dilate the opening of a body cavity for examination.

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  • How I, then a young girl, came to think of, and to dilate upon, so very hideous an idea?

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  • Similarly, dilateBrick (w, h) performs a morphological dilate using a wxh structuring element, all hits, and center at w/2, h/2.

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