@findex update-file-autoloads
@findex update-directory-autoloads
- A magic autoload comment consists of @samp{;;;###autoload}, on a line
-by itself, just before the real definition of the function in its
+@cindex magic autoload comment
+@cindex autoload cookie
+@anchor{autoload cookie}
+ A magic autoload comment (often called an @dfn{autoload cookie})
+consists of @samp{;;;###autoload}, on a line by itself,
+just before the real definition of the function in its
autoloadable source file. The command @kbd{M-x update-file-autoloads}
writes a corresponding @code{autoload} call into @file{loaddefs.el}.
Building Emacs loads @file{loaddefs.el} and thus calls @code{autoload}.