Definition of geometrical ratio in US English:

geometrical ratio


  • 1The relation between two magnitudes as determined by the number of times that one contains the other. Contrasted with arithmetical ratio.

  • 2A manner or mode of change in which successive quantities form a geometric progression; a geometric progression.


Early 18th century. From geometrical + ratio, after classical Latin geometrica ratio (2nd cent. a.d.), earlier in plural, geometricae rationes (Cicero, Vitruvius).