adjective tet·ra·basic \¦te‧trə+\

Definition of tetrabasic

  1. 1 :  having four hydrogen atoms capable of replacement by basic atoms or radicals —used of acids (as hypophosphoric acid)

  2. 2 :  containing four atoms of a univalent metal or their equivalent —used of salts

  3. 3 :  having four basic hydroxyl groups :  able to react with four molecules of a monoacid —used of bases and basic salts


\"+\ noun, plural


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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of tetrabasic

International Scientific Vocabulary tetra- + basic

Seen and Heard

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


capable of being understood in two ways

Get Word of the Day daily email!