“Nimbus” comes directly from Latin, meaning “cloud, aureole.” (“Aureole” means “a circle of light or brightness surrounding something, especially as depicted in art around the head or body of a person represented as holy.”) Those familiar with meteorology terminology may recall that cumulonimbus clouds are the towering, foreboding type that can produce rain, thunder, lightning, hail, and tornadoes. These, and cumulus clouds, are commonly referred to as “thunderclouds.”