Polymyxin B and trimethoprim are antibiotics that fight bacteria in the body. Polymyxin B and trimethoprim ophthalmic (for the eye) is used to treat eye infections caused by bacteria. Polymyxin B and trimethoprim ophthalmic may also be used for other purposes not listed in this medication guide.
Learner's definition of CHRONICLE. [+ object]. : to describe a series of events in the order that they happened. The book chronicles the events that led to the American Civil War. She intends to chronicle the broad social changes that have occurred in this part of the country.
The term often refers to a book written by a chronicler in the Middle Ages describing historical events in a country, or the lives of a nobleman or a clergyman, although it is also applied to a record of public events. Chronicles are the predecessors of modern  time lines  rather than analytical histories.