ethephon

noun
eth·​e·​phon | \ ˈe-thə-ˌfän How to pronounce ethephon (audio) \

Definition of ethephon

: a synthetic plant growth regulator C2H6ClO3P that induces flowering and abscission by promoting the release of ethylene and has been used to cause early ripening (as of apples on the tree)

First Known Use of ethephon

1971, in the meaning defined above

History and Etymology for ethephon

ethyl + phosphonic acid (a dibasic organic acid)

Learn More About ethephon

Time Traveler for ethephon

Time Traveler

The first known use of ethephon was in 1971

See more words from the same year

Dictionary Entries Near ethephon

etheostomoid

ethephon

ether

See More Nearby Entries 

Statistics for ethephon

Cite this Entry

“Ethephon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ethephon. Accessed 11 Aug. 2022.

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

WORD OF THE DAY

Test Your Vocabulary

Commonly Confused Words Quiz

  • vector image of a face with thought expression
  • I went to the ______ store to buy a birthday card.
Spell It

Can you spell these 10 commonly misspelled words?

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!