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### Adjacent Words

hyperbola
Hyperbole
Hyperbolic
hyperbolic cosines
hyperbolic function
Hyperbolic functions
hyperbolic geometry
Hyperbolic logarithm
hyperbolic navigation system
Hyperbolic or Napierian
hyperbolic paraboloid
hyperbolic sines
hyperbolical
Hyperbolically
Hyperboliform
hyperbolise
Hyperbolism
Hyperbolist
Hyperbolize
Hyperbolized
Hyperbolizing
Hyperboloid
Hyperboloid of revolution
hyperboloidal
Hyperborean

# Hyperbolic spiral definitions

## Webster's 1913 Dictionary

Hyperbolic Hy`per*bol"ic, Hyperbolical Hy`per*bol"ic*al, a. [L. hyperbolicus, Gr. ?: cf. F. hyperbolique.] 1. (Math.) Belonging to the hyperbola; having the nature of the hyperbola. 2. (Rhet.) Relating to, containing, or of the nature of, hyperbole; exaggerating or diminishing beyond the fact; exceeding the truth; as, an hyperbolical expression. ``This hyperbolical epitaph.'' --Fuller. Hyperbolic functions (Math.), certain functions which have relations to the hyperbola corresponding to those which sines, cosines, tangents, etc., have to the circle; and hence, called hyperbolic sines, hyperbolic cosines, etc. Hyperbolic logarithm. See Logarithm. Hyperbolic spiral (Math.), a spiral curve, the law of which is, that the distance from the pole to the generating point varies inversely as the angle swept over by the radius vector.

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