Merriam-Webster Logo
SINCE 1828
dictionary
thesaurus
view recents

billow cloud

noun
Save Word

Definition of billow cloud

: a long narrow cloud or usually a series of such clouds roughly parallel to each other caused by the flow of one layer of air over another producing waves at their interface the relatively cold crests of which are cloud-capped and their relatively warm troughs clear when the humidity is just right

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Learn More about billow cloud

Statistics for billow cloud

Cite this Entry

“Billow cloud.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/billow%20cloud. Accessed 12 Jun. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

virtuoso

Listen to the pronunciation of virtuoso

See Definitions and Examples »

Test Your Vocabulary

Name that Thing: Dog Breeds

  • any of a breed of small compact heavy-boned dogs developed in france and having erect ears
  • Name that dog!
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play
Ask the Editors
Word Games