Webster's Revised Unabridged Dictionary · 1913

Logarithmic

Logarithmic , adjective

[Compare French logarithmique.]

1.
Of or pertaining to logarithms; consisting of logarithms.
2.
Using logarithms; as, logarithmic graph paper; a logarithmic scale.
3.
Having a logarithm in one or more of the unknowns; -- of an equation.
Collocations (2)
Logarithmic curve (Mathematics) , 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.

Also: Logarithmical