Here's how they are used:
"Nimbo-" as a prefix:
* Nimbus: Refers to a rain cloud, often dark and dense.
* Nimbostratus: A thick, dark gray cloud layer that produces continuous rain or snow.
* Nimbo cumulus: A cumulus cloud with a rain-producing base, often seen during thunderstorms.
"-Nimbus" as a suffix:
* Cumulonimbus: A towering, thunderhead cloud associated with thunderstorms.
* Stratocumulus: A cloud layer composed of rounded masses, often with a nimbus (rain-producing) base.
* Altostratus: A high-altitude cloud layer, sometimes having a nimbus (rain-producing) base.
In essence, "nimbo-" and "-nimbus" both indicate the presence of rain or storm clouds, often implying precipitation or the potential for it.