n.
An advertisement promoting the interests or opinions of a corporate sponsor, often presented in such a way as to resemble an editorial.
[ADVER(TISEMENT) + (EDI)TORIAL.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.