Definitions

1. noun

A type of logarithmic scale used for plotting or displaying data, typically with a logarithmic horizontal axis and a linear vertical axis.

“The scientist used a semilog to graph the exponential growth of the bacteria population.”

2. adjective

Of or relating to a logarithmic scale, especially one with a logarithmic horizontal axis and a linear vertical axis.

“The semilog graph clearly showed the difference in growth rates between the two populations.”