di·​lat·​ed | \ dī-ˈlā-təd How to pronounce dilated (audio) , ˈdī-ˌlā- \

Definition of dilated

1 : expanded laterally especially : being flat and widened dilated leaves
2 : expanded normally or abnormally in all dimensions

Examples of dilated in a Sentence

Recent Examples on the Web Although physicians can use a test in which a puff of air is blown into your eye for screening, official diagnosis requires a dilated exam to scrutinize the optic nerve as well as other tests. Kaitlyn Pirie, Good Housekeeping, "8 Common Vision Issues and What to Do About Them, According to Eye Doctors," 2 Apr. 2020 Although physicians may use a test in which a puff of air is blown into your eye for screening, official diagnosis requires a dilated exam to scrutinize the optic nerve as well as other tests. Meryl Davids Landau, Good Housekeeping, "How to Maintain Good Eye Health, According to Doctors," 13 Mar. 2020 In March 2017, the coroner revealed that the singer died of natural causes and suffered a dilated cardiomyopathy with myocarditis and fatty liver. Maria Pasquini, PEOPLE.com, "George Michael's Sister Melanie Found Dead on Christmas, Exactly 3 Years After His Death," 27 Dec. 2019 The child became lethargic and displayed dilated pupils after eating candy from trick-or-treating, Sgt. Alyssa Stoney, azcentral, "Yuma police say suspicious Halloween candy did not contain harmful drugs," 5 Nov. 2019 Their baby’s kidneys were more dilated than usual and underdeveloped, a relatively common condition. Colleen Cronin, PEOPLE.com, "Pregnant Shawn Johnson East on Why She Celebrated After Getting Her Genetic-Test Results Back," 5 Aug. 2019 According to the doctors, the baby’s kidneys were more dilated than usual, and also underdeveloped, a relatively common condition, affecting up to 30 percent of unborn babies. Maria Pasquini, PEOPLE.com, "Shawn Johnson East Gives Update on Pregnancy Complications: 'Huge Weight Lifted Off Our Hearts'," 20 July 2019 And there was the option of lasering away dilated blood vessels. Alice Gregory, Allure, "I Got Fillers for My Chronic Undereye Circles, and the Results Were Impressive," 28 Apr. 2019 Others couldn’t speak or had abnormally dilated pupils caused by pressure in the brain. Thomas M. Burton, WSJ, "Hospitals Rush to Offer New Stroke Treatment," 26 Dec. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dilated.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of dilated

15th century, in the meaning defined at sense 1

Keep scrolling for more

Learn More about dilated

Time Traveler for dilated

Time Traveler

The first known use of dilated was in the 15th century

See more words from the same century

Statistics for dilated

Cite this Entry

“Dilated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dilated. Accessed 7 Jul. 2020.

Keep scrolling for more

Comments on dilated

What made you want to look up dilated? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

A More Exception(al) Quiz

  • hot dog  hot dog  hot dog  hot dog cat
  • Which of the following words is not a synonym for ‘a young person’?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!