|te.trə+ adjective
Etymology: International Scientific Vocabulary tetra- + basic
1. : having four hydrogen atoms capable of replacement by basic atoms or radicals — used of acids (as hypophosphoric acid)
2. : containing four atoms of a univalent metal or their equivalent — used of salts
3. : having four basic hydroxyl groups : able to react with four molecules of a monoacid — used of bases and basic salts
• tet·ra·basicity “+ noun -es