cinchonism[sin′kə niz′əm, siŋ′-]
cinchonism definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a pathological condition resulting from a reaction to or an excessive use of cinchona bark or any of its derivatives, as quinine: it is characterized by headache, ringing in the ears, deafness, etc.
cinchonism definition by American Heritage Dictionary
A pathological condition resulting from an overdose of cinchona bark or its alkaloid derivatives and marked by headache, dizziness, hearing loss, and ringing in the ears.