SINCE 1828
dictionary
thesaurus
view recents

pleion

noun
Save Word
plei·​on | \ ˈplīˌän \
plural -s

Definition of pleion

: a region in meteorology of positive departure from the normal of an element (as pressure, temperature, rainfall)

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!

Other Words from pleion

pleionian \ (ˈ)plī¦ōnēən \ adjective

History and Etymology for pleion

New Latin, from Greek pleiōn more, greater

Keep scrolling for more

Learn More About pleion

Dictionary Entries Near pleion

pleiomery

pleion

pleiophylly

See More Nearby Entries 

Statistics for pleion

Cite this Entry

“Pleion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pleion. Accessed 26 Sep. 2021.

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

WORD OF THE DAY

dedication

Listen to the pronunciation of dedication

See Definitions and Examples »

Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
True or False

Test your knowledge - and maybe learn something along the way.

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