cumuli definition by American Heritage Dictionary
Plural of cumulus.
Variant of cumulo-.
Variant of cumulus
noun pl. cumuli
- a heap; mass; pile
- the type of bright, billowy cloud with a dark, flat base, that develops vertically through all cloud levels and consists mostly of water droplets
Origin: Classical Latin a heap ; from Indo-European an unverified form u-melos, a swelling, increase ; from base an unverified form eu-, a swelling from source cave