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    dilate

    US /daɪˈlet,ˈdaɪˌlet/

    ・

    UK /daɪˈleɪt/

    C1TOEIC
    v.t./i.Verb (Transitive/Intransitive)(Of the iris of the eye, etc.) to get bigger
    The pupils dilate in the dark
    v.i.Intransitive VerbTo become wider, larger, or more open.
    The pupils of her eyes dilated with fear.
    v.t.Transitive VerbTo make something wider, larger, or more open.
    The doctor used drops to dilate her pupils.

    Video subtitles

    Do Cats Understand Kisses and Hugs?

    05:15Do Cats Understand Kisses and Hugs?
    • They might dilate their pupils or start swishing their tail.

      They might dilate their pupils or start swishing their tail.

    B1

    6 ways to regulate your nervous system (according to neuroscience)

    02:496 ways to regulate your nervous system (according to neuroscience)
    • If you're impulsive or angry, look out of the window but don't look at anything, dilate your gaze.

      If you're impulsive or angry, look out of the window but don't look at anything, dilate your gaze.

    B1

    11 Things That Can Change Your Eye Color

    12:2411 Things That Can Change Your Eye Color
    • One study found that fear can cause the pupil to dilate more drastically than feelings of happiness or neutrality, which would temporarily make your eyes look a different color, as less of your iris is visible.

      One study found that fear can cause the pupil to dilate more drastically than feelings of happiness or neutrality, which would temporarily make your eyes look a different color, as less of your iris is visible.

    • One study found that fear can cause the pupil to dilate more drastically than feelings of happiness or neutrality, which would temporarily make your eyes look a different color as less of your iris is visible.

      One study found that fear can cause the pupil to dilate more drastically than feelings of happiness or neutrality, which would temporarily make your eyes look a different color as less of your iris is visible.

    B1

    Neuroscientist: This Simple Habit Makes You MORE ATTRACTIVE

    07:16Neuroscientist: This Simple Habit Makes You MORE ATTRACTIVE
    • They change your facial structure. They dilate the the nasal passages.

      They change your facial structure. They dilate the the nasal passages.

    • They change your facial structure. They dilate the nasal passages.

      They change your facial structure. They dilate the nasal passages.

    B1

    The Psychology Behind Why We Love Horror

    04:32The Psychology Behind Why We Love Horror
    • your pupils dilate, your heart beats faster, and your blood pressure increases.

      your pupils dilate, your heart beats faster, and your blood pressure increases.

    B1

    Why Are Beach Holes So Deadly?

    16:11Why Are Beach Holes So Deadly?
    • At the same time, tiny movements within the slopes are strengthening the sand as it tries to dilate in volume.

      At the same time, tiny movements within the slopes are strengthening the sand as it tries to dilate in volume.

    B1

    What is FEAR and why do YOU feel Scared?

    04:51What is FEAR and why do YOU feel Scared?
    • The feeling of fear can make your heart race, breath quicken, scream, sweat, pupils dilate, freeze you in place, and can even cause involuntary urination.

      The feeling of fear can make your heart race, breath quicken, scream, sweat, pupils dilate, freeze you in place, and can even cause involuntary urination.

    B1

    Learn English Vocabulary: Pregnancy & having a baby

    22:20Learn English Vocabulary: Pregnancy & having a baby
    • If you're in a dark room, the pupil or dark part of your eye will get larger, it will dilate to bring in more light.

      If you're in a dark room, the pupil or dark part of your eye will get larger, it will dilate to bring in more light.

    • In this case, for a woman, at her bottom part, it will dilate to allow the baby to come out, okay?

      In this case, for a woman, at her bottom part, it will dilate to allow the baby to come out, okay?

    B1

    10 Subtle Signs Someone Feels Attracted To You

    04:5110 Subtle Signs Someone Feels Attracted To You
    • Studies have shown that when people become aroused, their pupils actually dilate.

      Studies have shown that when people become aroused, their pupils actually dilate.

    • Your eyes will dilate when you look at the gender you are most attracted to.

      Your eyes will dilate when you look at the gender you are most attracted to.

    B1

    Why Can't Dogs Eat Chocolate?

    03:22Why Can't Dogs Eat Chocolate?
    • our blood vessels dilate, and some of our muscles

      our blood vessels dilate, and some of our muscles

    B1