English

Adjective

polyprotic ‎(comparative more polyprotic, superlative most polyprotic)

1. (chemistry) Of an acid (or a base) that can donate (or accept) more than one proton; polybasic
   • 1946, Alexander Smith, Smith's College Chemistry, page 267:

     Many acids, however, are able to furnish more than one proton per molecule; these are known as polyprotic acids.

   • 2011, Steven S. Zumdahl, Chemistry: An Atoms First Approach:

     Some important acids, such as sulfuric acid (H₂SO₄) and phosphoric acid (H₃PO₄) can furnish more than one proton and are called polyprotic acids.

   • 2012, Daniel C. Harris, Exploring Chemical Analysis, page 233:

     Carbonic acid from CO₂ and amino acids from proteins are examples of polyprotic acids—those having more than one acidic proton.

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• polytropic