Lewis & Short

amplĭfĭcātĭo, ōnis, f. [amplifico], a widening; hence,

  1. I. An extending, enlarging, increasing (perh. only in Cic.): pecuniae, Cic. Div. 2, 14, 33: rei familiaris, id. Off. 1, 8, 25.
    Trop.: honoris et gloriae, Cic. Off. 2, 12, 42.
  2. II. In rhet. t. t., an exaggerated description of an object, an amplification, Auct. ad Her. 2, 30; Cic. Part. Or. 15; Quint. 2, 5, 9; 5, 10, 99; v. amplifico, II.