When Does Cumulus Mean?

1 : heap, accumulation. 2 [New Latin, from Latin] : a dense puffy cloud form having a flat base and rounded outlines often piled up like a mountain — see cloud illustration. Synonyms Example Sentences Learn More About cumulus.

What does Cumulus mean in weather?

Uncommon Rain, Snow or Snow pellets. Cumulus clouds are clouds which have flat bases and are often described as "puffy", "cotton-like" or "fluffy" in appearance. Their name derives from the Latin cumulo-, meaning heap or pile.

What does cumulus cloud mean?

[ (kyooh-myuh-luhs) ] Large, white, puffy clouds that generally appear during fair weather, although they also form thunderheads on hot days. Some carry rain.