Hȳ/per-bŏl'ic or Hȳ/per-bŏl'ic-al, a.
a. [Lat. hyperbolicus, Gr. ὑπερβολικός, Fr. hyperbolique.]
Sense 1. (Math.) Belonging to the hyperbola; having the nature of the hyperbola.
Sense 2. Relating to, or containing, hyperbole; exaggerating or diminishing beyond the fact; exceeding the truth; as, an hyperbolical expression.
Hyperbolic logarithms. See LOGARITHM.—Hyperbolic space (Geom.), the area comprehended between the curve of an hyperbola and a double ordinate.—Hyperbolic spiral, a spiral curve the law of which is that the distance from the pole to the generatrix varies inversely as the distance swept over. Math. Dict.