mydriasis; pupil dilation
Medical term for abnormal or induced dilation of the pupil. Antonym: 縮瞳 (miosis).
Antonyms: 縮瞳
I had mydriatic eye drops put in at the ophthalmologist.
Mydriasis can also occur naturally in dark places.
mydriatic agent; mydriatic drug
From 散 (scatter, disperse) + 瞳 (pupil), referring to the pupil widening.