Log·a·rith·mic Log·a·rith·mic·al a.
  1. Of or pertaining to logarithms; consisting of logarithms.
  Logarithmic curve Math., a curve which, referred to a system of rectangular coordinate axes, is such that the ordinate of any point will be the logarithm of its abscissa.
  Logarithmic spiral, a spiral curve such that radii drawn from its pole or eye at equal angles with each other are in continual proportion. See Spiral.
  ◄ ►