The Collaborative International Dictionary
Hyperbolism
Hyperbolism \Hy*per"bo*lism\, n. [Cf. F. hyperbolisme.]
The use of hyperbole.
--Jefferson.
Wiktionary
hyperbolism
n. 1 (context uncountable English) The use of hyperbole 2 (context countable English) An instance of hyperbole 3 (context countable geometry English) A blow-up of a curve at a point.