Page source:

var P = PostURL("http://www.acronymsearch.com/index.php", [. acronym=atf, act="search" .]);

var definitions = [];

if (Size(Pat(P, "There were no acronyms found")) > 0) then
   definitions = [];
else
   var Table = Elem(P, "table") directlycontain Pat(P, "results");
   var TR = Elem(P, "tr") inside Table[0];
   var i = 1;
   while (i < Size(TR)) do
      definitions = definitions + [Str_Trim(Text((Elem(P, "td") inside TR[i])[1]))];
      i = i + 1
   end;
end;
  
[. acronym = atf, definitions = definitions .];