BENZO

benzo-

a combining form used in the names of chemical compounds in which benzene, benzoic acid, or one or more of the phenyl groups is present: benzocaine.
Also, especially before a vowel, benz-.


Origin:
benz(ene) or benz(oic) + -o-

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Collins
World English Dictionary
benzo- or (sometimes before a vowel) benz-
 
combining form
1.  indicating a benzene ring fused to another ring in a polycyclic compound: benzofuran
2.  indicating derivation from benzene or benzoic acid or the presence of phenyl groups: benzophenone
 
[from benzoin]
 
benz- or (sometimes before a vowel) benz-
 
combining form
 
[from benzoin]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

benzo- or benz-
pref.
Benzene; benzoic acid: benzodiazepine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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