A run-on is a sentence in which two or more independent clauses (i.e., complete sentences) are joined without appropriate punctuation or conjunctionand this is generally considered a stylistic error, though it is occasionally used in literature and may be used as a rhetorical device. An example of a run-on is a comma splice, in which two independent clauses are joined with a comma without an accompanying coordinating conjunction. Some prescriptivists exclude comma splices from the definition of a run-on sentence, but this does not imply that they consider comma splices to be acceptable.
The mere...