cumulonimbus
cumulonimbus
Noun
pl: cumulonimbi
This term describes the most visually imposing of all cloud types, evoking a sense of power and imminent danger. It is used primarily in meteorological and aviation contexts to signal severe weather, such as heavy rain, lightning, and hail, rather than general cloud cover.
As a technical scientific term, it functions as a countable noun in meteorological reports, though it is often used as a modifier in phrases like cumulonimbus clouds. It carries a neutral, descriptive tone but implies a high degree of atmospheric energy.
Meanings
Nouncumulonimbus
A dense, towering vertical cloud associated with thunderstorms and atmospheric instability, typically characterized by a flat, anvil-shaped top.
The radar indicated a massive cumulonimbus cloud moving toward the coast.