Kim's eyes dilated while the outdoor stadium rocked in celebration. Ralph Wiley
… arterioles continually dilate and constrict. Janet Raloff
also: to display or become affected by expansion or widening of a body part
The expectant mother was dilating slowly. [=The expectant mother's cervix was dilating slowly.]
b
: to become expanded in extent
Understandably, a tendency to philosophize dilated with old age. Anthony Powell
Time dilates when you mentally hop continents. Bret Wallach
2
: to comment at length : discourse—usually used with on or upon
It's no small irony that a man who made a career out of dilating on failure should have ended up a success. James AtlasHe dwells and dilates upon every highlight and lowlight … — The New Yorker
Nitric oxide is a potent vasodilator that increases blood flow by dilating blood vessels. Ruth MacPete
Inhalers, the standard treatment for asthma, relieve wheezing by delivering an agent that dilates the bronchioles … Tony Dajer
Cocaine … increases the heart rate, raises the blood pressure and, in large doses, increases the body temperature and dilates the pupils of the eyes. Craif Van Dyke and Robert Byck
b
: to expand in extent
dilate our cultural knowledge
Like millions of other urban youths in the 1960s, Tian got a chance to dilate his horizons when he was sent into the countryside during the Cultural Revolution to learn from the peasantry. Lawrence Chua
2
archaic: to describe or set forth at length or in detail
Do me the favor to dilate at full / What hath befallen of them … William Shakespeare
expand may apply regardless of the manner of increase (such as growth, unfolding, addition of parts).
a business that expands every year
amplify implies the extension or enlargement of something inadequate.
amplify the statement with details
swell implies gradual expansion beyond a thing's original or normal limits.
the bureaucracy swelled to unmanageable proportions
distend implies outward extension caused by pressure from within.
a distended abdomen
inflate implies expanding by introduction of air or something insubstantial and suggests a vulnerability to sudden collapse.
an inflated ego
dilate applies especially to expansion of circumference.
dilated pupils
Example Sentences
The drug causes the blood vessels to dilate. During labor, a woman's cervix will dilate to about 10 centimeters. The drug dilates the blood vessels.
Recent Examples on the WebIn hot temperatures, the vessels dilate and thus dissipate heat. Stella Marie Hombach, Scientific American, 15 Sep. 2022 After the operation, Amy will need to use dilators for at least the first year to keep the vaginal canal open, with most patients needing to dilate once or twice a month for the rest of their lives. Mailee Osten-tan, Longreads, 8 June 2022 Misoprostol is a prostaglandin – a compound that has hormone-like effects on the body – that helps soften and dilate the cervix to expel the pregnancy. Grace Shih, Chron, 27 July 2022 As your core temperature rises, neurons in your brain’s hypothalamus tell your peripheral blood vessels to dilate; this increases blood flow near the skin, where heat can dissipate through sweat. Dhruv Khullar, The New Yorker, 25 July 2022 To send more blood to the skin’s surface, the heart beats faster and blood vessels dilate to accommodate more blood flow. Dominique Mosbergen, WSJ, 20 July 2022 Try a nasal strip, which uses external tension to dilate the nasal pathways. Scott Lafee, San Diego Union-Tribune, 5 July 2022 Within a few hours, the misoprostol will cause a person’s cervix to dilate and their uterus to contract, emptying the embryo from the person’s uterus. Marina Pitofsky, USA TODAY, 24 June 2022 Immediately prior to the procedure, your doctor will administer eye drops to dilate your pupil and anesthetize your eye. Hoopes Vision, The Salt Lake Tribune, 6 Apr. 2022 See More
Word History
Etymology
Middle English, from Middle French dilater, from Latin dilatare, literally, to spread wide, from dis- + latus wide — more at latitude