lognormal distribution: Meaning and Definition of

log•nor'mal distribu'tion

Pronunciation: (lôg-nôr'mul, log-), [key]
— Math. Math.
  1. a distribution of a random variable for which the logarithm of the variable has a normal distribution.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.