SINCE 1828
dictionary
thesaurus
view recents

De-ion

noun
Save Word
\ (ˈ)dē¦īən, (ˈ)dēˈīˌän \

Definition of De-ion

electronics
: a circuit breaker that extinguishes the arc following the opening of a circuit by removing ions from the gap by means of an oil vapor produced by the arc —formerly a U.S. registered trademark

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 De-ion

Statistics for De-ion

Cite this Entry

“De-ion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/De-ion. Accessed 2 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Comments on De-ion

What made you want to look up De-ion? Please tell us where you read or heard it (including the quote, if possible).

Show Comments  Hide Comments 

WORD OF THE DAY

organoleptic

Listen to the pronunciation of organoleptic

See Definitions and Examples »

Test Your Vocabulary

February 2021 Words of the Day Quiz

  • squirrel in winter
  • Which is a synonym of perdure?
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