hyperbolism noun. 
[hʌɪ'pǝ:bǝlɪz(ǝ)m] M17.[formed as HYPERBOLIZE + -ISM. In sense 2 from mod. Latin hyperbolismus.]1.  The use of or fondness for hyperbole; (an instance of) exaggerated style. 
M17.2.  Math. A curve whose equation is obtained from that of another curve by substituting 
xy for 
y. Now 
rare. 
M19. ■   hyperbolist noun a person given to the use of hyperbole 
M17.  [TahlilGaran] English Dictionary ▲