mydriatic

from WordNet (r) 3.0 (2006)
mydriatic
    n 1: a drug that causes the pupil of the eye to dilate; used to
         aid eye examinations [syn: {mydriatic}, {mydriatic drug}]
    
from The Collaborative International Dictionary of English v.0.48
Mydriatic \Myd`ri*at"ic\, a.
   Causing dilatation of the pupil. -- n. A mydriatic medicine
   or agent, as belladonna.
   [1913 Webster]
    

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