pentoxide

noun
pent·​ox·​ide | \ pent-ˈäk-ˌsīd How to pronounce pentoxide (audio) \

Definition of pentoxide

: an oxide containing five atoms of oxygen in the molecule

First Known Use of pentoxide

1851, in the meaning defined above

History and Etymology for pentoxide

International Scientific Vocabulary

Keep scrolling for more

Learn More about pentoxide

Time Traveler for pentoxide

Time Traveler

The first known use of pentoxide was in 1851

See more words from the same year

Statistics for pentoxide

Cite this Entry

“Pentoxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pentoxide. Accessed 24 Feb. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Keep scrolling for more

More Definitions for pentoxide

pentoxide

noun
pent·​ox·​ide | \ pent-ˈäk-ˌsīd How to pronounce pentoxide (audio) \

Medical Definition of pentoxide

: an oxide containing five atoms of oxygen in the molecule — see iodine pentoxide

Comments on pentoxide

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

WORD OF THE DAY

Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
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!