1a(1) : manifestly apparent commonly as a consequence of inexcusable badness or objectionableness a gross error (two) : out-and-out, utter a gross injustice b : visible with no aid of a microscope a gross lesion c archaic : promptly apparent Now to all perception 'tis gross you love my son.— http://messiahipqqo.livebloggs.com/15965315/top-dgross-secrets