mydriasis noun. [mɪdrɪ'eɪsɪs] E19.
[Latin from Greek mudriasis: see -IASIS.]
Ophthalmology. Excessive dilatation of the pupil of the eye.

■ mydriatic [mɪdrɪ'atɪk] adjective & noun (a) adjective of, pertaining to, or causing mydriasis; (b) noun a drug that causes mydriasis: M19.

[TahlilGaran] English Dictionary ▲