dilate

/dai'leit/
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Thân thiện
dilate

The doctor uses a light to check if the patient's pupils dilate.

Definition

  1. Verb (Intransitive):

    • To become wider or larger; to expand.
    • To speak or write at length on a subject; to elaborate.

  2. Verb (Transitive):

    • To make something wider or larger; to cause to expand.
    • To describe or explain something in great detail.
Usage and Examples

  • Intransitive Verb (to become wider):

    • In low light, the pupils of your eyes dilate to let in more light.
    • The doctor noted that the blood vessels had dilated.

  • Transitive Verb (to make wider):

    • The optometrist used special drops to dilate my pupils for the examination.
    • The medication is designed to dilate the airways.

  • Intransitive Verb (to speak/write at length):

    • The professor asked the student to dilate upon the central thesis of the paper.
    • She needed no encouragement to dilate on the virtues of her favorite author.

  • Transitive Verb (to explain in detail):

    • The author dilates his argument in the final chapter of the book.
    • The report dilates the reasons for the policy change.
Advanced Usage
  • "to dilate on/upon something": This is the standard phrasal construction used when the verb means to elaborate or speak/write expansively about a topic.
    • He was happy to dilate upon his plans for the new project.
Variants and Related Words
  • Dilation (n): The act or process of dilating; the condition of being dilated.
    • Pupil dilation is a normal physiological response.
  • Dilatory (adj): This is a different word meaning "causing delay" or "tending to procrastinate." It is related etymologically but has a distinct modern meaning.
Synonyms
  • Expand, enlarge, widen (for the physical sense).
  • Elaborate, expatiate, expound, enlarge upon (for the discursive sense).
Antonyms
  • Contract, constrict, narrow, shrink (for the physical sense).
  • Abridge, condense, summarize (for the discursive sense).
Related Phrases
  • Dilated cardiomyopathy: A medical condition where the heart becomes enlarged and cannot pump blood effectively.
  • Dilated pupil: A pupil that is wider than normal.
dilate

The doctor uses a light to check if the patient's pupils dilate.

Verb
  1. add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
    • She elaborated on the main ideas in her dissertation
  2. become wider
    • His pupils were dilated

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