Definitions for "Copyeditor"
a person who corrects all of your grammar, punctuation, word usage, spelling and style issues
The title given to a person (usually an employee of the publisher) whose responsibility it is to prepare manuscripts for publication by providing markup for the printer as well as any needed improvements in spelling, grammar, and style.
An editor responsible for the final polishing of a manuscript, who reads primarily in terms of appropriate word usage and grammatical expression, with an eye toward clarity and coherence of the material as presented, factual errors and inconsistencies, spelling, and punctuation.
An independent scholar, usually with a Ph.D. in the humanities.