| 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. |
| benzo- or benz- pref. Benzene; benzoic acid: benzophenone. [From benzoin.] |
benzo- or benz-
pref.
Benzene; benzoic acid: benzodiazepine.