use CGI;
use My::QXcall;

$cgi = CGI->new();
my(@terms) = $cgi->param('t');

# do stuff sanitize input data, etc.
foreach (@terms) {
   $_ =~ s/(?:^\s)|(?:\s$)//o; # trims leading/trailing whitespace
   # [other stuff I should be doing would go here...]
}

# look up terms with dict
print QXcall(qq{dict ${\ scalar
   join(' ', map { "'" . quotemeta($_) . "'" } @terms)
}});