Dictionary
car•ben•i•cil•lin
Pronunciation: (kär"ben-u-sil'in), [key]—
n. Pharm.
a semisynthetic penicillin, C
17H
16N
2Na
2O
6S, used against certain bacteria, esp. those involved in urinary tract infections.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.