Radiate

In physics, radiation is a process in which energetic particles or energetic waves travel through a medium or space. There are two distinct types of radiation; ionizing and non-ionizing...

The radiate or Post-reform radiate , was introduced by Diocletian during his reforms. It looked very similar to an Antoninianus even with a radiated crown like Sol Invictus, except it misses the XXI that numismatists believe was to represent 20 parts bronze to 1 part silver...