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Definitions

dilation

[dahy-ley-shuhn, dih-] / daɪˈleɪ ʃən, dɪ- /
NOUN
distention
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Caffeine temporarily shrinks blood vessels and less dilation means less visible swelling.

From BBC • Feb. 16, 2026

Not only do we tend to mirror each other’s movements, postures, facial expressions and gestures; we also uncannily sync up our heart rates, blood pressure, pupil dilation and hormonal activity.

From The Wall Street Journal • Jan. 22, 2026

According to the complaint, the patient reported to Brock’s office in September 2018 for a dilation and curettage to remove remaining tissues from her uterus.

From Los Angeles Times • Jun. 13, 2025

In the 1990s, anti-abortion activists got a leaked copy of a paper that was presented at the annual conference of the National Abortion Federation describing a procedure called dilation and extraction.

From Slate • Sep. 17, 2024

The room must be reading her heartbeat, her sweat, her pupil dilation.

From "Uglies" by Scott Westerfeld




Vocabulary lists containing dilation