An alteration intended to improve: textual emendations made by the editor. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "emendation" in a sentence
"_Foretel_ favours the emendation, which is made with great acuteness; yet the original reading may, I think, stand."
"Here, then, is another authority against Gifford's proposed "emendation" of the expression as it occurs in _Hamlet_."
"I can hardly persuade myself that I shall let you depart for Gloucestershire without seeing you for an hour, but can make no promise to myself, should it be so I have only to assure you of my cordial good wishes for your emendation in health, and of my love for all."