/fohld"owt'/ , n.
1. a page larger than the trim size of a magazine or book, folded one or more times so as not to extend beyond the pages; gatefold.
adj.
2. that must be unfolded to be used, read, viewed, etc.: a cabinet with a foldout table.
Also, fold-out .
[ 1945-50; n., adj. use of v. phrase fold out ]