mydriatic
散瞳劑; 散瞳藥; 擴瞳藥
myd·ri·at·ic /ˌmɪdrɪˈætɪk/ 形容詞
Myd·ri·at·ic a. Causing dilatation of the pupil. -- n. A mydriatic medicine or agent, as belladonna.
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mydriatic
n : a drug that causes the pupil of the eye to dilate; used to
aid eye examinations [syn: mydriatic drug]