Cetirizine Definition
sə-tîrə-zēn
noun
A nonsedating antihistamine, C21 H25 ClN2 O3 , used in the form of its hydrochloride to treat allergic rhinitis and other allergic disorders.
American Heritage Medicine
Origin of Cetirizine
(a)cet(ic acid) alteration of (pip)erazine
From American Heritage Dictionary of the English Language, 5th Edition
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