Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of or relating to an acid that can donate more than one proton to a base.
  • adj. Of or relating to a base that can accept more than one proton.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of an acid (or a base) that can donate (or accept) more than one proton; polybasic

Etymologies

poly- + prot(on) + -ic.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

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