Definition of log-normal in US English:



  • Of or denoting a set of data in which the logarithm of the variate is distributed according to a normal distribution.

    • ‘For complex situations, the distributions will be log-normal, or even bimodal.’
    • ‘Hence, the development of log-normal weight frequency distributions is not proof of competitive interactions between plants.’
    • ‘We have also confirmed the fits by checking the Quantile-Quantile plots for log-normal and normal distributions.’
    • ‘We also tested a normal distribution for our data, but found the log-normal distribution of error had a better fit on the data than the normal distribution.’
    • ‘As a result, the exposures do not follow a normal distribution but generally follow a log-normal distribution covering a wide range of exposures.’