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verb

dilate

deye-LAYT

Dilate (verb) means to become or make wider, larger, or more open. Example: “Her pupils dilated in the dark room.”

verb
1
To become or make wider, larger, or more open.
"Her pupils dilated in the dark room."
"Doctors use drops to dilate the eyes before an exam."
2
(formal) To speak or write about something at length.
"He dilated on the subject for nearly an hour."

How to use dilate

Learner’s notes

In plain EnglishTo widen or expand, especially used for pupils, blood vessels, or the cervix.

Common pairings
pupils dilate dilate the cervix

Word forms

more dilate comparative, dilated past tense, dilated past tense, dilates singular, dilates singular, most dilate superlative

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Her pupils _____ in the dark room.

Etymology

From Latin dilatare, "to spread out," from dis- plus latus, "wide."

Origin: Latin

Related words

Rhymes for dilate

See all rhymes for dilate →

Frequently asked questions

What does “dilate” mean?

The word “dilate” means to become or make wider, larger, or more open. In plain terms, to widen or expand, especially used for pupils, blood vessels, or the cervix.

How do you pronounce “dilate”?

“Dilate” is pronounced deye-LAYT (/daɪˈleɪt/ in IPA).

How do you use “dilate” in a sentence?

Here is “dilate” used in a sentence: “Her pupils dilated in the dark room.”

What part of speech is “dilate”?

“Dilate” is a verb.

Where does the word “dilate” come from?

The word “dilate” comes from Latin. From Latin dilatare, "to spread out," from dis- plus latus, "wide.".

How many meanings does “dilate” have?

“Dilate” has 2 distinct senses listed in this dictionary. The most common is: to become or make wider, larger, or more open.

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Definitions: FreeDict original editorial