As adjectives the difference between nonnormal and lognormal
is that nonnormal is (statistics) not normal while lognormal is (mathematics) describing a logarithmic function that has a normal distribution.
nonnormal
English
Adjective
(
-)
(statistics) Not normal.
- a nonnormal distribution
lognormal
English
Adjective
(-)
(mathematics) Describing a logarithmic function that has a normal distribution