noun Chemistry.

a solid compound, C2H6ClO3P, used as a growth regulator to accelerate the ripening of tomatoes, citrus fruit, apples, and other crops.

Nearby words

  1. ethelred ii,
  2. ethelstan,
  3. ethelwulf,
  4. ethene,
  5. ethenyl,
  6. ether,
  7. ethereal,
  8. ethereal oil,
  9. etherealize,
  10. etherege

Origin of ethephon

1970–75; as shortening of the chemical name 2-chloroethanephosphonic acid; see chlor(o)-2, ethane, phospho-, -onic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019