copyeditor

or cop·y ed·i·tor

[ kop-ee-ed-i-ter ]
/ ˈkɒp iˌɛd ɪ tər /

noun

a person who edits a manuscript, text, etc., for publication, especially to find and correct errors in style, punctuation, and grammar.
a copyreader.
Also called slot man. the head copyreader on a newspaper.

Origin of copyeditor

An Americanism dating back to 1895–1900

Example sentences from the Web for copyeditor