cumulus clouds

[ (kyooh-myuh-luhs) ]

Large, white, puffy clouds that generally appear during fair weather, although they also form thunderheads on hot days. Some carry rain.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.