Etymology
Advertisement

cumulus (n.)

1650s, "a heap," from Latin cumulus "a heap, pile, mass, surplus," from PIE *ku-m-olo-, suffixed shortened form of root *keue- "to swell." Meteorological use for "rounded mass of clouds, snowy white at the top with a darker, horizontal base" is attested by 1803.

Others are reading

Advertisement
Advertisement
Definitions of cumulus

cumulus (n.)
a globular cloud;
Synonyms: cumulus cloud
cumulus (n.)
a collection of objects laid on top of each other;
Synonyms: pile / heap / mound / agglomerate / cumulation
From wordnet.princeton.edu