Meaning of isoceraunic

i•so•ce•rau•nic

Pronunciation: (ī"sō-si-rô'nik), [key]
— adj. Meteorol.
  1. representing, having, or indicating equality in the frequency or intensity of thunderstorms: isoceraunic line; isoceraunic map.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.